I guess not 100% but it doesn't make any sense to me why they would.
Even so that's a long way from saying:
You can't have "private" censorship without government's exerting pressure to force the "private" companies to do what they want.
Here I've always been told it was the fault of the liberal Silicon Valley elites but now I guess they're being forced into it.
How do you propose that we liberate Zuckerberg, Dorsey, Brin, etc. from the hold of the Chinese?