For now, the United States should ban Muslim immigration, until we can come up with a process that doesn't let people in who are harmful to the United States. There are a lot of young men that supposedly come to the U.S. as refugees, when really they are either economic immigrants or terrorists.
The United States should not ban Muslim immigration. In the first place, banning Muslim immigration is unconstitutional. Secondly, doing so will alienate moderate Muslims and many Middle Eastern allies. America wants to work with moderate Muslims and Arab partners-- not try to alienate them. Defeating radical Islam requires that we work together.
Muslims and Muslim Americans have much to contribute to the US economy and culture. Many Muslims have made contributions in technology, education and entertainment. They are a population of people that could enhance America's assets in many sectors. Inviting Muslims to stay in America will increase the country's edge, making it more competitive.
A ban on Muslim immigration is illegal and will not have the affect Donald Trump envisions. I agree that we should increase security when permitting Muslims from certain countries to enter, but a total ban is ridiculous and will not work. Where will it stop if this is allowed? What will the next ban be?