That also happens to be part of getting an education. Might be smarter than you think. I'll bet more than a few can read and write. Might not be Swedish, mind. But I'll bet they understand some elementary school stuff. Hell, there's plenty of anecdotal evidence, and a couple of studies, that find that kids who don't go to school (at all, homeschooled or no) tend to be around a grade level behind their peers. Brain develops just fine, most of them time. Living in a shitty environment with disease and malnutrition and high stress levels doesn't help, of course. But overall, economies rarely get actually injured by immigration. Controlled immigration, at least. >.> You can still overload the system, of course, and boy howdy will there be growing pains...charity ain't easy.
Don't get me wrong, I don't think Sweden needs any more refugees. But I don't think kicking them out or treating them like shit for having the nerve to show up on your doorstep asking for help is really the answer either. You got your bite, mouth's a bit overfull, you need to chew and digest this new population. That's why I want to deal with the problem at the source. It won't go away as long as the bullshit wars are happening and people are worried about terrible things.
That said, I do so hate fearmongering. On either side of the spectrum. It's just bad. It fucks with your brain. It fucks with group dynamics. It's just bad. I just want it to die. Please, please let the constant churning state of fear everything tries to whip us into die and never return. It won't happen, but please.
Rebels have their war crimes, yeah. But Fuck Assad anyway, and Fuck ISIS too. Like I said, stomp on them and wait until something that isn't godawful horrendous rises from the ashes. People can survive without a government in subsistence societies. Better than they can with a civil war going on, at any rate.