One thing you should know is to never trust the words of a politician. Now Elon Musk is looking to form a party of his own simply because of a fallout. Remember when he said he was going to accept Bitcoin as payment for his EV, Tesla, then not less than three months after he stopped it, although he stated his reasons but the point I'm trying to make is this; the words of these businessmen can't be taken too seriously as it can change. The way I see it, he just says what the public wants to hear. Do not be surprised that should such a thing work, like him ursuping power from the current president in an election and he manages to become President of the United States,  that he may choose to promote DOGECOIN and not Bitcoin like everyone expected.
 
If you ask me, I'd say I don't count Elon Musk as someone who is pro Bitcoin, rather he just uses it as a front sometimes to get what he wants.