I've read some criticisms of E.Musk(, from the funder of Lemmy, who probably temporarily inherited this account while he was a mod for all i know), but back then it was to convince leftists that E.Musk wasn't an exception : all billionaires are thieves and enemies of the workers. The fact that they had to underline that E.Musk wasn't an exception may prove something, they/we would have preferred if all these achievements were the results of, e.g., a cooperative, perhaps one day in the future, perhaps in an other country if the west doesn't destroy it(Huawei).

It's when he bought Twitter at an unbelievable price because he was annoyed at censorship(, don't believe him if you want,) that the hate really suddenly started to spread, with stupid arguments that i've read and never understood(, he fired people ? Lots of them were useless and the workforce has been multiplied in recent years). Most of all he finally began to bring improvements in a stagnating Twitter.

I don't get why silent billionaires like the Walmart family are ignored while the attention is focused on the few who are using their wealth for beneficial ventures(, like Bill Gates or Elon Musk).
He probably did/enabled more than anyone else : Tesla(electric cars), SpaceX, Starlink, SolarCity/'Tesla Energy', the Boring Company(hyperloop), OpenAI and xAI, Neuralink, ..., so he's probably the last billionaire i would criticize, not the first.