He said that maga are saying he isn't maga which is objectively true and doesn't weigh in on his actual motives

If read directly, then I agree.

With the context cues in how he said it, I see how some people could interpret it that way. He profession is being a high context speaker, so I think this interpretation is reasonable.

But, I don't think the interpretation matters, either way. It's not reasonable to use either as justification for his show being cancelled.