No, it's nothing like the US. PRC actively censors all social media in China (the social media companies do it themselves based on keywords provided by the government).

> it's not PRC's fault FB/Google employees killed efforts to move back into PRC, or that the SV was drunk on free speech (cheap moderation) until western society realized (but won't admit) PRC regulators were prescient

Moderation on Western platforms is nothing like the censorship that takes place on PRC platforms, and equating them is a gross misrepresentation of the situation. Not to mention that government censorship is much more problematic even than company defacto cenorship (where if you don't like Twitter you can move to Mastodon) since gov censorship is absolute.