The irony in all this is that "socialist Europe" intentionally loosened their immigration laws so they could create a larger worker-class to subsidize their social programs. Looking at the birth/death rates of the indigenous people compared to immigrants...especially Muslims, is freightening. They're digging their own grave and they don't even realize it.
Sounds like they should import Mexicans. No, I'm not kidding here! The illegal immigrants that work in the US, work they butts off. (I'm not including the freeloaders that are ruining California's hospital system.) Why not solve two problems with one solution? Europe gets hard workers, and we have less illegals wandering around.
Here's what you tell them: a) you have to have a job or you are deported (all immigrants would have their exit ticket prepaid by their employer), b) you have to be tested every year for a basic fluency in Swedish (or whatever) on an increasingly difficult scale until a certain competency has been achieved, c) you get none of the juicy social benefits unless you become a citizen and have passed the competency test and a citizenship test.
Sure, they'd send half their income back to Mexico, but they'd be working up a storm, heh. Citizenship in any nation is a privilege for an immigrant, not a right. Make someone work for it first, and you weed out a lot of crap. Those free-handout Muslims in Sweden would find some other sucker nation to keep them on the dole (probably France).