Respect. And of course the opinion of one insignificant liberal-minded american won't change a thing. But, well, here's the thing: These migrants, refugees, outcasts, are already everywhere else. They are being driven from their homelands, those who aren't sickened or killed there. And Russia happens to be the biggest (physical) country on Earth, at least so I'm led to believe.
So, sure, you don't have to have them. But where are they gonna go? There's a famous Catch-22 to the "NIMBY" principle. And what is going to become their fate, if they're not allowed in?
Better to have them in and tell them what to do and how to behave, enough so that all parties get along. Better to recruit them to make your country stronger, to employ the unique skills and assets they may be able to bring. It's moving with the force of the punch, instead of blocking it with resisting force. In the end, it can give you strength, instead of taking it away.
That said, nothing will ever make me like the smell of scalded cooking oil. ;
EDIT: For the record, I'm not at all a fan of the US' current policy on immigration, which causes problems for many people who would choose to stay in the US if they could. It's an old running joke, the Green Card thing.. But it's also a policy problem that needs to get fixed. (--1 romney)