He did not say that. I do not believe you think an angry leftist with a trans woman girlfriend was MAGA, nor do I think Kimmel thinks that. Kimmel tried to gaslight you, and because you want to gaslight us too you got chubbed up on it, but it doesn't make what he said factual or accurate in any way.
ABC cancelled him because affiliates refused to take the program after he was caught lying about the killer. You should stop buying products advertised on ABC or the affiliates that refused to show his program to make a statement. Maybe they'll put him back on the air for you.