There really is a problem with immigration in Sweden and Europe in general, but it's not the number of immigrants nor the origin of those immigrants. It's the so-called "multiculturalist" policy (as opposed to an integrationist policy). This has effectively created "separate but equal" societies within european society, by stimulating immigrants to keep their language, all of their traditions, live in closed communities and basically not interact with the rest of society.
It may seem extremely tolerant and progressive to teach immigrant kids in the tongue of their parents, but in reality it's pure idiocy. When you have second and even third generation immigrants still thinking of themselves as iraqis or somalis than your immigration policy is bankrupt, and this is precisely the case in most of Europe.
