Why assume that what he is doing must make sense? Past displays of very smart and logical behavior in no way guarantees future logical behavior.
There is even a name for the phenomenon where once a person is recognized for previous accomplishments of their intelligence, they might be more prone to go on flights of fancy: Nobel disease. [0]
> being universally hailed as correct appears to bolster the individual laureate's confirmation bias more than it does their skepticism.
The biggest problem for Musk is that he can't run for president himself. Which may or may not be a shame for the USA, but I do wish he could run for president anyhow. Perhaps trump could arrange the supreme court to fix that issue.
To be honest I don’t think he believes this extreme right wing ideology but stirs the pot for his own twisted entertainment.