Its not the following that is the problem. he has way less followers than many MPs like Starmer or Farage. He even has less than Raynor, Burnham and Jess Phillips! It is the post engagement which is multiple times higher than any other MP! People liking and sharing his posts!
What do you expect on X, which is deliberately manipulated by it's owner to amplify far right content?
Musk thinks he's untouchable, and maybe he is, but that doesn't mean people will continue to listen to the toxic nonsense he promotes.