I understand the perception is bad but facts outweigh perception. This has nothing to do with 'all ' Muslims being evil, it has to do with a certain subset of radicals that are and maybe not being able to distinguish between the two in a group of refugees or other immigrants. In addition to the large number of other immigrants the U.S. allows every year, the U.S. accepts about 85,000 refugees every single year and admitted a record number of Muslim refugees in 2016. The U.S. accepts about 1,000,000 immigrants overall every single year. The U.S. and any other country can certainly ban all people from a certain country if it deems there to be a security risk. Nobody has the automatic right to enter another country. If the U.S. deems Syria, for example, to be a security risk, they can accept more refugees from elsewhere instead. As far as the Geneva convention, I don't know all the details but countries all over the world, particularly in Europe, use severe Visa restrictions to make it very difficult for people to enter despite the Geneva Convention. I'm not sure that it is particularly easy for people to reach these pre-clearance points or at what point they have to be considered. Syrian refugees, for example, ultimately get here because the U.S. brings them here.
Don't get me wrong, I think immigration and accepting refugees is a good thing and a benefit to the U.S. as well as to those immigrating. However, security concerns have to be addressed as well and I think there may be some legitimate ones here. All that Trump has thus far attempted to implement is a very temporary on ban to evaluate the screening process. Now maybe this is just a political stunt or maybe there are some legitimate concerns, I don't know. But on the surface, it doesn't sound unreasonable and all these other crazy claims about Trump's business interests being involved or banning all Muslims are not helpful. Those false claims are what has the world hating us, not the facts.