When your whole identity is consumed by boundless, baseless, joyless hatred of "the other", yes, you're gonna be negative.

I don't believe Musk is controlled by any of that though. He might share in it, but it doesn't quite dictate him as much as it dictates those in actual misery. For example, he isn't actually opposed to letting immigrants in, if they'll make him richer. He's motivated by greed and grift, and no small helping of pride.

I suspect he just doesn't want people criticising him and his cronies. Particularly when they inevitably start enacting policies that affect their base negatively (we've already seen our share of face-eating leopard voters shocked to find out that their face isn't off limits), social media could help pissed off people realise how many others are pissed off too. I don't think I need to spell out why that could be dangerous for him.

Better to quell dissent entirely. If nobody can complain about the government, it's harder to organise against it. Suppress criticism, censor the media, manipulate what you get to see to shape your view...

Sounds familiar, doesn't it?

(Obligatory note that calling a dictatorship communism doesn't make it less authoritarian than a capitalist dictatorship. Red boots hurt just as much as any other color if they step on your neck, no matter how tasty they might be. That has nothing to do with the topic, I'm just bracing for tankie whataboutisms.)