Go do some reading, consider relaxing your opinions while you do it.
1. I encouraged you to provide a citation to support your own point which I AGREED WITH. You have not.
2. I asked a question about whether different ethnicities are treated differently in chinese law. You avoided answering.
3. I gave an example of greater freedom under UK & US law. You have not acknowledged this presumably because it is inconveniently true.
4. I asked in good faith for some reading material on whatever was about Xinjiang. You have not provided this.
If I am "completely invested in strong opinions" then change my mind with facts. It was a worthless and pretty patronising reply. Provide relevant facts.
I presume the Xinjiang thing was this mass imprisonment thingy https://en.wikipedia.org/wiki/Xinjiang_re-education_camps
> that we still have a bigger chunk of people in jail
Provide a citation. I believe this figure is true for the US (you are saying you are in the US I take it?), so cite it. It's a strong and damning figure so bring it to the front.
> Han Chinese don't go to prison just for criticizing the government
Do other ethnicities? Why does ethnicity matter here? Does ethnicity make a difference in chinese law?
> They go to prison if they start getting organized, holding meetings, being an alternative political party
In this respect the US and the UK are better because you don't. Mind, I've no great trust in the government not to 'keep an eye on troublemakers' as they'd put it, in fact there's a long history of infiltrating groups in an immoral and downright illegal way sometimes, but they strongly tend not to end up in prison.
> Xinjiang...
I've not heard of this. Could you provide some pointers please? (genuinely curious)