I think you will find that innocent people do get hurt, that's the point you numpty.
Do you think a bunch of football hooligans walk up to a group wearing the other teams colours and say "excuse me gents, we are looking for a bit of a ruck, would you chaps be interested" or do you think they see a group of fans they think they can beat and run over and kick fuck out of them.
Without wanting to be captain obvious normal intelligent articulate people do not get involved in football hooliganism, the moral aspect aside it's against the law and intelligent people do not like the idea of prison.
Football hooliganism is for morons and bullies and you need to take a long hard look at yourself if it impresses you. Would you be impressed if your son was walking back from the match and a group of these hooligans that you are so impressed by cornered him, kicked his face in and put him in a coma?