They are dangerous. People could die. Young children could be traumatised. Scenes like that in England would bring tut tutting about disgraceful jingoism, football thugs and disgraceful at that time in the morning.
Man Utd fans at York 1974. Earlier in the season this lot had traumatised some of ours so much that they moved into the seats from then on. Next York home game was City. Police put in the papers after controlling Man Utd fans they would have no trouble controlling Hull City. That turned out wrong.