That might be an opinion (it’s not, “most likely” means they aren’t sure about a claim, not that the claim is an opinion), but even if it were if would be completely wrong. Lemmy.ml is, after all, owned by Dessalines, one of the creators of Lemmy, afaik does not live in China.

.ml is definitely a pretty authoritarian instance though and denying the Uyghur genocide in China seems to be a pretty common take there.