Twitter is not remotely the start of what's wrong with Elon Musk. His companies have all been stupidly and impulsively managed and he only succeeds because most of the time he doesn't get sued for contract violation, blocking roads, financial fraud, or wildlife destruction.
He was not good with cars, he forced himself into a leadership role at Tesla, made changes that ran over budget, then blamed it on the real founder (Martin Eberhard) and engaged a hostile takeover. Then he violated contract by not giving him the first produced Tesla, keeping it for himself, and instead giving away the second which broke shortly after. Also his employees there all avoid him because he randomly fires underlings in fits of rage.
Tesla autonomous vehicles have always been far behind their competition, he got some guy straight out of college to lead the work, claimed that they first have to solve full sentient AI (???) before cars can drive themselves, and now that fresh grad is working at Apple or something.
I'm not going to talk about the horrendous injustice of his investor fraud for Solar City or his numerous OSHA violations or the time he lied about sleeping in a Tesla factory for a year.
SpaceX has repeatedly failed to deliver on contracts with NASA so they can pursue the UNGODLY STUPID Starship project and idiotic point to point rocket launch projects. Elon claims he'll convert Ocean oil rigs into rocket launch pads which is an impossibly dumb idea (is he trolling us??), and he fires rockets in Boca Chica at a scale he is NOT authorized to do at times he is NOT authorized to do, and has actually ruined many of the locals' lives. They literally had to evacuate their homes. His failed launches also have burned down wildlife preserves home to critically endangered cats and turtles. SpaceX employees wrote an open letter begging him to stop bullshitting about what their real work is, and he fired everyone who signed it.
Also he still hasn't delivered the sex robots he promised me. What the hell, Elon?
Iirc all but one of the scientists working on Neuralink have left because he kept lying about their work and treating them very poorly. He claimed the end goal is to play Star Craft??
But worst of all, in one interview he was asked if he prefers Emacs or Vim. He fumbled over his words for awhile and obviously didn't know anything about either of them, but he did understand that tech literate people are supposed to have an opinion on this, so eventually he managed to say it probably doesn't matter or something. Obviously Emacs is the far superior choice, shame on you Elon.