These narratives have real world consequences. Anytime you mention Xinjiang or that China is committing a "genocide" to liberals and conservatives it helps spread this shit. It helps reinforce Sinophobic narratives and will result in more deaths. Combat these lies and this propaganda where you see It. It is our moral duty to do so.
As for what I'd count as credible, Idk, maybe a good on the ground reporter?
Have you seen a credible good on the ground reporter that says there is a genocide?