Oh com'on. Crime is tied to poverty and unemployment to a degree, but it's also tied to culture and values in a society or among sub-groups of people, or else you would never see the extreme discrepancies between people with a Middle Eastern background (5-10 times more prone to violent crime than ethnic Swedes) and East Asian background (who commit clearly less violent crime than native Swedes).
And to call Sweden democrats a "racist" party, geez. With that attitude why don't you go back to Norway dude. You write an excellent post filled with the exact same arguments that are only brought up by the Sweden democrats into the political discourse and yet they get the racist label from you.
That's because the East Asians that came were much better off than the Middle Eastern immigrants. It's the same thing in the United States: the blacks were forced into slavery and thus were poorer than whites, while a limit on immigration from non-white countries until around the 1960s ensured that generally educated and well-off Asians would be allowed to immigrate, yet many people completely ignore this or are unaware of it and try to compare blacks unforabourably to Asians.