Morality isn't a subjective notion, and we can recognize actions that are demonstrably monstrous and evil. Take a Hitler or a Pol Pot, as an example, and consider whether you could honestly argue they're morally no different than a Mother Teresa. Moral relativism itself is a subjectivist philosophy that seeks to turn everything upside down.
It is however hard to determine what is really right or wrong in a particular situation as people differ in their opinions. Still, they are entitled to their opinions whether they think they are right or wrong. Consequently, to determine what is really right or wrong requires debate so that the reality or facts can be determined not only based on unfounded opinions. Anyway, we all can say what is right or wrong without forcing others to believe us.
The reason why this is a question that is hard to say is people have rights to say their opinion. Although the person might be wrong, it doesn't matter, because people just think of the wrong thing. They didn't know. It is a good idea, to point out, just not rudely. For example, 2 teens are doing homework, and ne says that the answer is wrong. You can either check or fix what the answer it is, or you can explain to them nicely that it is correct for such reasons.
Just don't be annoying about it.
The question is poorly phrased. It asks if anyone can say what is right or wrong. That obviously happens, and has for centuries. Anyone who is stolen from, attacked, or the victim of another's negligence is aware of an injustice. A sense that something wrong occurred and should be either set right, or avenged. This occurs across ethnicities, populations, and environments. Sure, we can argue the right or wrong of other issues at other levels, and many of those could be attributed to personal desires, upbringing, etc. But the core belief that there IS a right and wrong indicates a deeper objective moral law and lawgiver.
It doesn't matter what people say because only the people with power have the right to choice what is right or wrong. You might say is not true but reality has shown that is true. If hitler would had won the war and control the world than everyone would have to obey him and you might go against his ideals but with no power you're just another person that will die for keep his ideals or obey his rules for the fear of dying
Rationality is a nature of a human. Someone become irrational when they can't face the fact wisely. Meanwhile, if there were no any people that can't difference between good and bad decision, so there were no peoples that could stand in this world until this day. Rationality is a basic needs for every people. And it is something that really sensitive and subjective. Thus, what makes a good decision of someone may become bad decision for another one.
The right way to leave my house is via one of the doors or should something happen whereby that is not an option, a window with a drop to the ground or a level that is survivable. The WRONG way to leave my house is via the chimney or through the postbox. Right and wrong are merely titles of perception and whilst leaving via the chimney is wrong for me, it is perfectly acceptable for the smoke from the log fire.
Right and wrong can only be defined by the immediate situation and not by the environment as a whole.
Everyone has a different opinion on what is exactly "right" or wrong, so no one person can define what it means for everybody; different cultures, upbringings, and, perhaps, even, genetic dispositions that will surely affect someone's perception of morality must be taken into account. It is not as black and white as "good or evil" or "right and wrong".
Philosophically, in my opinion, it is technically not possible. There's the subject matters ethics and morals, but since this is our society, and it is formed a certain way, we have made "rules" which we have to follow, and following them is the "right" thing to do. But if our society had been built in a slightly different way, those rules would probably have been different. Who are we to say pedophilia is wrong (please understand that this is just an example. I do not, in any way, condone pedophiles)? We have set up the rules, and when following those rules, pedophilia is wrong. But if the rules had been set up differently, it might not have been.
Then there are also more current things such as Snowden, Anonymous, and Wikileaks. It is a grey area, where the law says that what they are doing is wrong, while in their opinion what they are doing is the right thing to do. This can also be seen is the differences between laws in countries around the world.
So no, in my opinion, no one can say what is right and what is wrong. While there are laws which we have set up and which I, as a citizen of my country, follow, no one can technically tell me what is right and what is wrong.
We all have different thought processes. Something could be completely right to one person, yet completely wrong to another. Peoples' views are relative. To put opinions into "right" or "wrong" categories and generalise them is illogical. We're all probably uninformed about what both concepts really mean, yet we feel entitled to determine if something is right or wrong. We need to inform ourselves more about the concepts before we start to apply them to situations.
It might seem a ridiculous thing to say but, actually, the view of the majority is just not "enough" to set moral views on what is right and what is wrong. There are simply so many examples in history that prove . The government is also not high enough to tell right from wrong. God is the only figure in the entire world, that makes objective moral exist. Otherwise, morale would be completely subjective, and it would lead the world into chaos, because no one could say that murder, rape, burglary etc. are wrong. Unfortunately, that is where the modern times are heading.
A man comes from Sao Paulo arrives in New York city. He thinks it is terribly cold due to the difference of temperature. On the other hand, another man coming from Norway comes to visit New york. He thinks it is so warm. As a conclusion, man are measures of all things. There is no rights or wrongs but countries, religion and cultures should make these boundaries.
What is "right" and what is "wrong" is a matter of opinion, 2000 years ago the Romans believed that it was "right" to pit slaves against one another for amusement, they also thought that being Christian was "wrong", 1000 years ago the Catholic Church believed that anything that disagreed with the bible was "wrong" and burned people for it, 60 years ago the country of Germany believed that the Jews were evil and that therefore it was moral to kill them, which leads me to my second point they believed that it was ok to kill them because the government told them that it was, if someone in a position of authority tells you something for the most part people will believe it, and once the majority of people believe something that makes it fact an example being that 99.99% of the world once believed that the world was flat, but that doesn't mean that they were right. 100 years ago if you asked someone if it was possible to go to the moon 99.99% would have said no, that doesn't mean that they would have been right, if you asked them if it was possible to destroy an entire city with a single weapon they would have said no, but once again it doesn't mean that they would have been right.
In conclusion what is right and what is wrong is as much a matter of opinion as what the best sports team is.
Most of the time people know what is right and what is wrong for themselves. For some of us it is right to wake up at 6 am and start a new day with cup of coffee, for others is to wake up around noon and have supper's leftovers for breakfast. We follow principles, habits, experience to determine our position towards something. However, it is not possible always to know "what is right and what is wrong".
First of all, there are so many controversial issues that would probably never have one ideal answer. For example, is social networks are harmful? I do not know that answer. The issue have pluses as well as minuses. Sometimes it is right, but sometimes it is not. Therefore I am not able to express one-side attitude. And that was easiest example of debateful issue :)
Second, we do not have knowledge and experience in absolutely everything. Thus, we cannot have answer for problems we are not familiar with.
Third, we do not think of what is wrong ar what is right. Most people tend to judge as others do, as it easy and safe.
In conclusion, it is important to do critical thinking for every thought you have. Sometimes people may blindly believe in one thing, that they would never listen and accept oponent view. We should be open to new principles, new ideas, new thoughts. New makes us grow.