Unfortunately we all know how this will end, because it's always the same when people are allowed to escalate actions uncontrolled. There will eventually be serious injuries, maybe even deaths, and then they'll again try to find someone else to blame.
And there will be loads of people saying "We told you so", who will be called snowflakes, whatabouters and whiners.
As for those who say Liverpool aren't treated differently, and anyone can do this at any match, try lighting a flare with a bottle of beer in your hand around the Etihad on Saturday afternoon, never mind lobbing them towards a bus. When you wake up, ask the desk sergeant what the score was.