I think you fail to account for cultural differences. The "face scanning for toilet paper" may be unacceptable to you, but if it means no more vandalized public

I think you fail to account for cultural differences. The "face scanning for toilet paper" may be unacceptable to you, but if it means no more vandalized public toilets, then there are bound to exist societies which would deem it an OK trade-off. I may be misinformed, but my impression of Chinese culture is that it prefers stability and order, sometimes at the expense of liberty and convenience. That's not to legitimize the abuse of such means by the state, and I don't want to say that disappearing people from the street is fine, but lets focus on that abuse and camps, not the toilet paper. These are completely separate matters.