Supposing they do hate America, you think this little show of Musk actually hurts the people who got to decide how Twitter was run?
I repeat, firing for cause is basically unheard of at that level. The former execs will sue, and Musk will either settle out of court (i.e. pay their golden parachutes), or he'll let it go to court, lose and still pay those golden parachutes plus whatever damages/legal fees. Meanwhile, those former execs will have new top paying jobs by the end of next week, assuming they didn't already have those lined up from before Musk even took charge. They don't give a shit about any of this, they're going to get a nice payday and just move on.
Like I said, these firings are theater. Musk throwing the culture warriors a bone because he badly wants them to think he's a cool guy.
Other than that, while we no doubt disagree over the specifics, yes, fuck Twitter. And fuck off Musk. Probably gonna slap blockchain and crypto on there, a good old rousing round of solutions looking for a problem, in which case of course, fuck that off too. Yes, may the fucking off be drawn-out and ignominious, interspersed with spiked baseball bats.