They've been around for decades; they're called "ghettos." I guess the upside is that they aren't full of Islamic extremists, but overall, it's a pretty bad state of affairs in those places. As anyone who has driven through a place like Gary or Camden or East St. Louis can attest...
Your comment has nothing whatsoever to do with the thread.
That has long been my view.
The U.S. has No Go Zones in and around every major city.
The residents are by and large too lazy and ignorant to plow through the Koran but the effect is the same.
White People Bleed A Lot.