Musk is not just a republican, he's pushing far-right parties everywhere else in the world (plus, the "roman" thing). He's the textbook definition of why social networks should not have recommendation algorithms other than "chronological view of who you actively chose the follow".
He can say whatever he wants, but buying one of the biggest social network to push his ideology onto billions leaves "freedom of saying whatever one wants" territory to enter "let's buy elections by controlling what enter people's feeds".