That alone shows that Trump is only for the show. Saying unproven and unfounded things just for the sake of impressions. He wants to provoke and have everyone engage with him and his nonsense. A true Joker President.
Honestly, if he could kick Elon out, cut funding for Elon's tech programs, or fire the Fed chairman...Given his character, and if he had the authority to do it, he would have done it a long time ago, not just go on social media and talk nonsense. I don't even remember how many times he has yelled and called for Powell to be fired but so far, the only thing he can do is continue to go on social media to repeat the same nonsense.