I must ask, if someone say to you "I don't like you, and i don't want you in my home", do you still go to visit there?
And if you do, consequences can be held. Such as violating a no trespassing law.
and if they don't open the door for you, then you going in true the window? the same goes for the channels, if they don't want you there, then you should not go there. by change host and enter there anyway will only get your "new" host banned as well. And sit here and argue about it i don't think will help you get back in, only the way you act to others and how you behave will help you.
You're comparing private homes to public channels.
The equivalent would be a public building run by a staff. And 1 staff member could tell 1 individual he does not want him there.