There would be backlash if they did, but I bet they could sell their sheep on it. I mean why not try the prevailing methods of media control. Claim TikTok pulled out of the US or is dangerous or something. Attack any dissent as disinformation and ridicule dissenters. Being that I suspect the dissent will lean a lot more young and left than the other things they've done this with, almost all of them will just cave with a "yes, master" and move on.