I don't doubt they can and that isn't quite what I said.

This is an open source project. Anybody is free to submit code. Am I wrong?
I apologize for misrepresenting you. I was trying to be laconic.

I think there's universal agreement that everybody is free to submit.
It's the authority to accept or reject that Chinese miners could conceivably wrest from Core.
It's possible that overwhelming hashpower could allow them to succeed.
You mean in a contentious hard fork situation? Ain't nobody got time for that.