If it can be partial consolation, or perhaps a wake-up call, this is also the case in Europe.
To name a few: Germany, Denmark, Holland, Sweden, Belgium, England has already been mentioned. All Arab-Islamic neighborhoods. Where Islam is not religion, it is political identity. Not to mention France: a minister of the Interior who proposed to take back control of at least the first thirty out-of-control neighborhoods in France (thirty!) was fired. I myself, when I am in Europe, live in a neighborhood where at night, you are woken up by cars with very loud music: Arabic music. And where there are gangs (drugs and prostitution) of Arab-Islamic people. Very violent. You are right that these communities have a very hard time integrating. Islamists should have the courage to stoop even to the dark pages of their own past and present. Who knows, maybe in some time.