Have you seen the cartoons? I think the extension was probably the "last straw"
Some proponents of free speech really only care if their speech is curtailed and care little about anyone else's.
See his recent complaint that advertisers are bailing after his Paul Pelosi bullshit. He at least asserts the belief that he's entitled to advertisers, I guess because his "free speech" means everyone else loses freedom of association, or something.
In my defense, he has ramped up his horrible behavior greatly in the last six or seven months to a near crescendo now.