You hit the nail on the head; the biggest problem is the incompetent politicians who allow all the criminal immigrants to come to various countries in Europe and commit crimes, treat their prison sentences as if they were a vacation, only to go out and commit new crimes. Nothing serious happens in Europe if you commit severe violence or even murder!Natives these days wouldn't even want to work in dirty or dangerous jobs for a living (even if it pays well) so those jobs are taken by law abiding and hard working immigrants. Europe needs the good ones, not the bad ones that recently came into the continent solely to engage in illegal activities and commit multiple crimes. Literally no one asked for them to come. And sadly this is what we see for the vast majority on the internet which severely tarnishes the reputation of arabs in Europe.
But if you cheat on taxes, you almost get a life sentence. The foreign gangs that have established themselves in Europe are getting stronger and stronger and are laughing at the incompetent politicians who are leading Europe to ruin.