She was abusive! Are you a member of any of the minorities she criticises? I doubt they felt slightly offended by her.
No I'm not, are you? perhaps you can tell me what the effects of her rant are besides causing offence to a carriage load of people, and maybe I'll change my opinion on whether she deserves a jail sentence.
Just so you know, I do think she should be punished but jail is to harsh for the crime she committed.