I want to comment only on racism in eastern Europe, and why it is like this. Basically, all the major crimes we see on television are committed by gypsies, who tend to have a browner skin color. This is not racism, it's pure fact, and tbh they are more violent, than others, because most of them have nothing to lose, so if they please they will shank you in broad daylight for 5€.
But it is not common, so people remember some violent crimes for a long time, if something happens everyone is talking about it because it is not a daily occurrence. (In the end, I'll tell you some.)
So eastern European people only see crimes committed by people who have darker skin color, it's a natural tendency to get more afraid of what you see in the media as bad.
Ofc not all of them are bad, I grew up in a neighborhood where they were the majority, so I've some gypsy friends too, but I've seen a lot of bad things too.
I mean I saw a gypsy man shank himself while policemen were chasing him because he robbed an elderly woman, so he can say the policemen assaulted him. (It is captured on camera, so police had nothing to do with shanking.)
A gypsy man killed her mother over money, went to jail. He served his sentence (15 years) he went back to live with his old father, after 2 weeks he beheaded his own father for no reason at all, with a bread knife, continued to live in the house with his dead, beheaded father, spent all of his money. Police showed up after a noise complaint. When he opened the door, the police threw up because of the stench. He wasn't on drugs.
A gypsy woman didn't want to pay for a TV, so she shot my uncle in the head with a makeshift gun, didn't hit properly, he stayed alive so she asked her sons to beat and choke him to death. After he died they stuffed him in a big cabinet and held numerous parties in the same house, the same room where the body was "hidden". When my uncle started to rot, they dumped him in their port-a-potty sewage. The police became curious because it was my uncle's last known location, and they were showing some suspicious behavior, but they couldn't find the body or the weapon. My aunt was furious about the police not arresting them so in anger she flipped the port-a-potty and heard the big fuckin thud. They discovered my uncle half-rotten, bones showing, covered in shit and piss, maggots eating him.
So yeah, we can be racist, but only because in the majority we see crimes committed by people with darker skin color, so we are more afraid. But once we get to know you, you are in a hell of a ride consisting of alcohol, stories, and dumb fuckin shit.
PS.: People with a skin color darker than milk chocolate are treated like superstars tbh because usually, they play in some kind of a sports team, we think they're cool.