> I haven't check other stats but what if your views on crime are being manipulated by people who have agenda that normally wouldn't be possible if the true reason was revealed?

That is a known fact. Criminality rate drops but french people are feeling more and more insecure.

There is a media oligarchy in France (by billionaires) that pushes anything but left ideas (the left want an exit tax and a wealth tax, the last one is the Zucman tax). The idea that immigrants are criminals is easy to spread as the prison population is clearly different than the mean population of France (for various reasons). They are pushing it so hard that the population is feeling insecure even if the criminality rate drops.

Source about media oligarchy by billionaires: https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/M%...