[Exofunctor]

> What do you base this belief on? Any sources to any studies?

http://www.pewforum.org/2013/04/30/the-worlds-muslims-religi...

You should think very carefully about why you had an incorrect model of these people. You may be making similar mistakes in other areas.

> Swedens tiny population of 10 million can't handle immigration of tens of thousands?

Depends how you define "handle". If by "handle" you mean "avoid cultural erasure", then maybe not.

I'd also like to point out that it's tens of thousands per year. There are almost 100,000 Syrians in Sweden.

> Upwards mobility will happen

On what do you base this claim? Has upward mobility happened in the countries from which these refugees originate?