Anybody who has done a European away day know that certain police forces don't give you the freedom of a city. Last year the entire Frankfurt support were banned from the city of Marseille. Ridiculous dradonian policing in France is to blame, not racism.
Football fans of large teams do not have the best reputation.
I agree with you about general authoritarianism by local govts, it's bad.
Not exactly authoritarianism. But yes, since the state of emergency was declared after the Bataclan in Nov 2015, the police are everywhere. It's like the TSA: largely a waste of money, but who would take the risk to scale down in our age of finger-pointing?