Hey, they got that system in place already in China! https://en.wikipedia.org/wiki/Social_Credit_System Go to HackerNews, post a dissenting topic, enjoy no travel or credit! Work in a high compliance job where you have to submit financials yearly, no more!
And you can lose your job for posting a controversial opinion in the US, completely privatized. It's a way more stable system. Allow a very narrow band of opinions in practice while claiming that everyone's free to think whatever they want in theory.
The last very public case I'm aware of was Damore at google, which they must've settled outside of court.