RT interviews Karl Albrecht Schachtschneider:

RT: Multiculturalism has failed, say European leaders. But what are the actual consequences of that failure?

KAS: If by multiculturalism you mean people from southern Europe, Germany, northern Europe, Hungary, Poland, Russia, all European nations, living together, then no, it has not failed. There is no problem at all.

The problem is with the Muslims. It’s not the people who constitute the problem, but Islam. And Islam comes with Muslim people. They build active groups that promote Islam and advocate the establishment of Sharia law. And Sharia law, particular its criminal section, is absolutely impossible for European relationships. We have religious pluralism in Europe and not a single religion is dominant. But Islam is the religion that tolerates another religion as long as it has no power.

(Via Islam in Europe)