Except that Musk's Twitter in no way supports freedom of speech. For a while he banned any mention of Mastodon, or the ElonJet account, and he's banned a whole slew of antifascist accounts and journalists who report on the far right (he will claim that it's because they violated rules, but in each case it seems it was a new rule: journalism he doesn't like is "doxxing": reporting on who did what). So sure, it looks like he is willing to lose a big chunk of his net worth to change Twitter, but his intent seems to be to promote certain speech and suppress other speech, or as he would say, to kill the "woke mind virus".