Most people do find it odd, and sometimes disturbing. Yet I am for everyone marrying someone they love, whether you are related or if it is someone of the same sex. How is diminishing someone going to help you in your life? It doesn't at all, affect you. It is NOT your life, or choice so leave people alone.
There is no rational reason for keeping laws or taboos against consensual incest that is consistently applied to other relationships. Personal disgust or religion is only a reason why one person would not want to personally engage in what I call consanguinamory, not why someone else shouldn't do it. An adult should be free to share love, sex, residence, and marriage with ANY consenting adults. There are more people than you'd think out there who are in lifelong healthy, happy relationships with a close relative. It isn't for everyone, but we're not all going to want to have each others' love lives, now are we?
Some people try to justify their prejudice against consanguineous sex and marriage by being part-time eugenicists and saying that such relationships inevitably lead to “mutant” or “deformed” babies. This argument can be refuted on several fronts. 1. Some consanguineous relationships involve only people of the same gender. 2. Not all mixed-gender relationships birth biological children (this question specifically mentioned protection.) 3. Most births to consanguineous parents do not produce children with significant birth defects or other genetic problems; while births to other parents do sometimes have birth defects. 4. We don’t prevent other people from marrying or deny them their reproductive rights based on increased odds of passing along a genetic problem or inherited disease. It is true that in general, children born to consanguineous parents have an increased chance of these problems than those born to nonconsanguineous parents, but the odds are still minimal. Unless someone is willing to deny reproductive rights and medical privacy to others and force everyone to take genetic tests and bar carriers and the congenitally disabled and women over 35 from having children, then equal protection principles prevent this from being a justification to bar this freedom of association and freedom to marry.
Some say "Your sibling should not be your lover." That is not a reason. It begs the question. Many people have many relationships that have more than one aspect. Some women say their sister is their best friend. Why can’t their sister be a wife, too?
Some say “There is a power differential.” This applies least of all to siblings or cousins who are close in age, but even where the power differential exists, it is not a justification for denying this freedom to sex or to marry. There is a power differential in just about any relationship, sometimes an enormous power differential. The President of the United States is allowed to date and marry, for example. To question if consent is truly possible in these cases is insulting and demeaning.
Some say “There are so many people outside of your family." There are plenty of people within one’s own race, too, but that is no reason to ban interracial marriage. So, this isn't a good reason either.
Although I personally think it's kind of weird, it's my opinion and I wouldn't judge the person at all! Consent is consent, and an adult should be able to have sex with whomever they want that is legally able to consent. It makes me think about how sodomy was illegal. They can't decide everything for you!
I don't care if you think it's gross or unnatural or wrong, 1) that is strictly your opinion and 2) if they consent and don't directly involve anyone who doesn't consent they affect no one. They are adults, they wish to engage is sex or have a relationship. As long as they respect each other as a person, no one has the right to keep them apart.
The laws exist for two reasons 1. Consent 2. Birth issues.
Birth issues are a major issue between opposite sexes as the rate of defects between genetic relatives is astonishing. This is far from fair to the baby. No birth control is 100% and you cant force partners to use it. It also poses a risk to the female who is likely to have many miscarriages. If these medical issues can be stopped, we should stop them.
Consent is a major issue because of the power struggle. Normally there is some about of age differences between couples. Be that one year between cousins or 20 between father an son. Even if they are both adults, consent will be an issue here. Like a boss can't legally get with his assistant, or a teacher with a student anyone with power over the other, be it superficial or not, cannot be in a sexual relationship. It would raise too many problems.
Example: How would someone possibly believe that the parent wasn't grooming their kid for intercourse until the age of 18, or wasn't abusing them in privet before that?
Strange, I remember when I debated legalizing gay marriage with a group of friends about 4 years ago, one of my roommates tried to assert the point that legalizing gay marriage would open a floodgate of all sorts of bizarre immorality, like legalizing beastiality, incest, and pedophilia. His comments were met with a lot of sharp criticism and judgement, claiming that his fears were illegitimate and that he was just a homophobe. Anywho...
There are a lot of good medical reasons for not engaging in incest, namely birth defects. But beyond that it is becoming increasingly harder to come up with good reasons to oppose these types of things because society seems to be on such a downward spiral trend, that our standards have dropped significantly and what were once considered unacceptable repercussions have now become all but the norm.
The poor generations coming up are gonna be so confused. Right now they are dealing with two moms or two dads, but 10 years down the road they might be dealing with a mother who is also their sister, or a dad who is also their granddaddy. I realize that the question more addressed sexual relationships, not necessarily incestual procreation, but they are too closely tied that one cannot exclude the other. Maybe even 20 years down the road kids will have to deal with a stepdad who is a goat, because hey, people should love who or what they want to right? And it doesn't affect anyone else, so just let em be?