Ok, so you go right to the insults when you don't have an answer, sounds like the rest of the trolls on this forum. It's an honest question, nothing high school about it.
The point is that you blamed the countries they emigrated to, not the people themselves. I disagree. We get refugees and immigrants from all over the world, and the "vast majority" as you put it earlier of these countries don't harbor terrorists. Syria happens to be a place filled with anti- western terrorists and radicals. I don't see how letting them flood our country and then looking back and saying "they weren't bad when they came here" is be an acceptable option. Be as PC and as humanitarian as you want to, but some of them will blow shit up, given the chance, and I'm for just not letting them come here and therefore not looking back when something goes boom.