My hubby is a Liverpool fan and he himself agrees with you that a lot of Liverpool fans act like hooligans and dickheads, he's been around them and says it's embarrassing cos they let down the decent ones.
He was at the Paris final and said though, that was an absolute mess. He himself had a ticket and couldn't get through the gate right away. He said he was lucky he never got sprayed with that stuff aswell. There were genuine ticket holders there that were getting turned away. It was really bad management and it was a miracle it wasn't another disaster, he was really concerned people would get hurt.