I find it strange that people are trying to deny this incident happened. Why would this family bother making up such a story? A quick check of the trains CCTV by the police would reveal if there was an incident or not.
I also find it bizarre people are calling bullshit on the story because they haven't said what racial insults were hurled at the boy. What does it matter? In the eyes of the victim he's been racially abused and that's all that matters. Not whether non-Asian readers think it's racist or not.
Okay I don't think the city fans were trying to kick the toilet door down, but can ppl not see a scenario where the boy is being abused, he goes to the toilet to remove himself from the situation and is followed, and there's a bit of banging on the door to intimidate him further? To the boy in the toilet it would feel and sound like they were trying to kick the door down.