Regarding the deliberately isolating themselves comment: Isolating themselves why?
It could be for any number of reasons. Certainly, it's easier and probably more pleasant to hang with people with whom you share a language, culture, religion, interests, etc.. Even in the U.S., people of different ethnic/religious groups are more likely to congregate together. It could also be if you're part of a religion that believes the conduct of non-believers to be generally immoral, maybe with familial pressures playing a role. For example, some people may not believe it appropriate to marry or even date people outside their religion/culture/ethnic group.
And, it could also be if members of the majority simply are not welcoming.
My point is that probably
all of that is at work in France to some extent, and the problem is that those behaviors on both sides can be mutually reinforcing.
You do raise a very good point regarding the speed to which cultures are brought together. It undoubtedly complicates things, and it does contribute to the desire to isolate. And if so, then governments/immigrant populations need to think about what can done to make the situation better. The expectation should not be the other should unilaterally take action.
Right. It's a two-sided problem. BUT, I'll also say there can come a point that regardless of the initial causes of that isolation/segregation, there comes a point where you have to deal with the situation as it currently exists. You can't really unwind it based on "who started it" because the individuals who "started it" may be long gone. Blame for c
ausing the initial breach is irrelevant.
At some point, you've just got to sit down and devise rules of acceptable conduct. There must be tolerance -- as in not using physical violence -- even if there isn't acceptance or respect, and even if you have hatred/disdain.