Funny thing is that all these riots are mostly from second or third generation citizens that have been brainwashed by the local mosques. So, french citizens + under age. It's not like they can send them to where they came from. And it's not like there are enough jails, for the little jail time they would get due to being underage. A tough problem to solve
Countries hope second, third, generation would assimilate into the society and at the same time efforts exist that completely go against that.