Despite Trump being... well, himself, and Musk being, in the end, a guy that is focused on his accumulation of wealth at least I would say the crypto agenda has been advanced by Trump. I am not sure he is advancing it in the right direction with that "stablecoin law" but that is a discussion for a full thread.
On Musk, he is about thinnin the state - but I would say rather selectively and certainly not on a Libertarian agenda.
Musk does not do politics for pleasure, he is ill suited for it.
I think what is going on with Musk goes beyond accumulation of wealth, to be honest. Just think about it, there are billionaires and millionaires who continue to have the steering wheel of their businesses and continue to accumulate their wealth without getting involved directly in politics. Sure, getting involved certainly accelerates the rate of accumulation since he would turn laws on his favor, but he is already one of the wealthiest men on the planet.
My personal theory is about Elon being the kind of person who needs to constantly be the spotlight regardless what is going on in the world, he is a pathological attention seeker, unlike other billionaires who focus on increasing their fortune quietly.
Any intelligent business person whole realize that it does not matter which political party your buyers are, as long as they contribute to increase your capital, by getting involved in politics this way he was basically reduced his potential base of clients worldwide as Chinese manufacturers push forward more affordable models of electric cars.