Keep in mind that Elon isn't really doing half the things breathless reporting is claiming. He doesn't have the authority to do much at all.
Everything he's doing is legal because he's just not doing much.
This is all trolling from him and a PR stunt from the administration. We need to emphasize that to avoid actually giving him more of the influence that you're worried about him having.
It's a Streisand Effect sort of thing.