If we want to see an end to personal and global conflict, then love is the only real answer.
Violence never quashed violence because if you're equipped to do violence then you'll continue that passage. Let's say Nazis, if Nazis they be, have got a profoundly ugly form of thought and of actions, why match that? Antifa's ugliness is no better than the ugliness of the far right.
The only 'anti-fascist' song that makes any sense to me is the Beatles' 'Love Is All You Need', because, quite simply, it's true.
Fascism is meaningless because it's so completely indefinable, so where does the 'anti' come into the equation?