I’m a pretty staunch critic of China, but population control seems like a pretty good thing. I suppose ideally it would be promoted but ultimately voluntary, but I don’t think their single child policy was the worst thing they’ve done by far.
I'd agree it's not the worst thing they've done so far, but given that they're actively committing genocide that's a pretty high bar.
2. You can means-adjust the fines to dissuade the rich. You can even redistribute revenue from these fines to the poor if your concern is inequality. I’m particularly curious about paying the poor not to have children since fining the poor seems likely to be unproductive.