So, in summary, you are saying that it isn't your fault. Well who would have guessed.
"What can I do" you ask, rhetorically. You ask rhetorically because it is obvious that you yourself think the answer is that you can't do anything. So lets have a look at what you have tried to do. Have you for instance called out these people on Rawk or any other Liverpool forum? Have you sent your footage of the missile attack to the police if you were there? Have you written to Merseyside police to complain about the lack of arrests while Merseyside police officers watched criminal acts being committed and did nothing to stop them? Did you say before the attack that it would be completely out of order for the bus to be attacked? Did you complain that the messages doing the rounds on social media before the game were obvious incitements to attack City's team coach? Have you said on any forum or platform that the people whose attach left the City coach unsafe to drive have no place amongst Liverpool supporters? Have you asked the club to take action against the supporters that attacked an opposition team coach? Have you said to the club that there is a sizeable number of LFC fans whose disgusting behaviour is something you no longer wish to tolerate, and it is high time they were rooted out?
You see, these are the sorts of things you and many many other LFC supporters would have done, if you actually wanted your club to get rid of the feral scum element of its support. If that's what you wanted, you would have made the club aware of the fact that that's what you want them to do. And all the other decent LFC fans out there would have done the same thing, because if the club realise that a large number of its own fans have had enough, it might actually do something about it. The more people complain about something, the more likely it is that something will get done.
But you haven't. Neither you personally nor LFC nor its supporter base generally has actually lifted a fucking finger to rid the club of the nasty sizeable criminal element of its support or to bring to justice those who thought throwing missiles at a coach was an acceptable way to behave. And you never will. So in a few months time, you will be back here bleating that the latest atrocity featuring Liverpool fans, because there will be another one sooner or later, isn't actually that bad, or the club has apologised so we should all just move on, or it wasn't actually that bad and people shouldn't exaggerate, or it simply isn't your fault.
Because that's what you do, isn't it?