During their colonial periods, European countries exploited and ruined many of the countries these immigrants came from.
Now they've immigrated to the European nations that formerly colonized them for a better life. Got a few hoodlums amongst the immigrants? Big deal. Karma.
That's the ultimate arguement of leftist asshole,so i presume you're an arab or a black with inferiority complex, or a leftist asshole who got trouble to assume he's white, it's called an "ethnomasochist".
By the way european country bring medicine, vacination, built road, hospital, school, sewers in country where you can die by malaria just by drinking a glass of water or having a simple flu, then in most countries political party of indigen began to think they can did it without white, so they chased them...
Colonisation had bad part but more good part, country like maroc or algerie were on prehistoire before us.
Needless to speak about africa, just watch what happen when those genius chased white from zimbabwe, they destroyed all farm, now these chimp are starving and forced to immigrate in other countries, just like the grasshopper they are, unable to built something.