I wouldn't really say this is a result of France "being nice" to these Muslim immigrants, but more a situation of having ignored them for so long, and only now realising their mistake. France's government, possibly with a healthy dose of at least subconscious racism, allowed these massive immigrant populations to build up inside the country without making a real effort to reach out and integrate them into the larger fabric of French society, and so these immigrants formed their own communities, semi-seperate from society at large. Now, with religious radicalism on the rise across the world, nobody quite seems to know how to integrate these people into French society, and instead they are reacting with fear, ignorance and anger, just like the Muslim youths attacking the French police.

Its a sad situation all around, everybody has an equal share of the blame, France for not reaching out to these people, and the Muslim immigrant communities for not doing enough to stop the rise of fanaticism inside their own culture. Sitting down and actually talking to one another would probably go a long way towards solving these issues, but I doubt it will happen, as both sides seem intent on placing ALL of the blame on the other.