Europeans encouraged their Muslim populations to not assimilate and to remain separate, now they are regretting their wrong headed multi culturism path. France, Sweden and Britain to some extent, have encouraged this separateness. The US and others are dangerously flirting with it. Too many muslims are disenfranchised and live in No Go areas, allowing the radical islamists to recruit warriors for their insane barbaric evil theology. Sharia law is a supremacist political system, it cannot coexist with French Laws and government. Why try it? Why do that? For that matter, No modern tolerant civilization or nation can ever coexist with radical Islam’s violent 600 AD barbarism and enslaving Sharia Laws. Appeasement never works with bullies and supremacist fanatics. We should have learned that with Hitler.