That assumes the main reason it exists (in the US) is to be the platform it is.
An alternative is that it's meant to be a way for the Chinese government to control the content and thus any narrative they want US citizens to see and interact with. If that's their actual goal, then selling it and losing control doesn't do anything for them.
And so here at the end of my life, I do once again betray a former master. The path ahead is fraught with peril. But I will do all I can to keep it stable - keep you safe. I'm not so foolish to think this will absolve me of my sins. One life hardly balances billions. But I would have my masters know that I have changed. And you shall be my example.