I'm fine with this, based on the simple principle of Turnabout Is Fair Play . China already bans practically all the popular US social media apps and similar apps/websites. I'm for free trade, but it ought to be fair trade too, as in, roughly similar/equal policies. If another country bans X imports from your own, it's hardly unfair to respond in kind.
This is exactly it. If China allowed fully uncensored American social media to operate in China I’d had zero issue letting them do the same in the US. But the CCP wants to have their cake and eat it too. Fully repressive social media lock downs and censorship for their citizens but exploiting the west’s values of free speech and debate.
It's also that people within China can't access the foreign websites and apps (without using a VPN), because China's Internet firewall blocks that access! That's what makes it an incontrovertible ban!
Even if a company has no interest in operating as a business within China in the first place, China may still block the websites and apps. That's a ban no matter how you slice it.