Ok so I did read about the affirmative action policy you linked, how does that support your argument?
It runs counter to the genocide—“cultural” or otherwise—narrative, and counter to the “Han supremacy” narrative. The Uyghur people and other minority groups were excepted from China’s One-Child policy, and as a result the Uyghur population in Xinjiang has grown in proportion to the Han population. The Uyghur languages and religious* practices are protected and financially supported, not suppressed. People can go to Xinjiang and see for themselves. They can see & hear the languages in use and visit the mosques.
*The CPC is officially atheist, but their general policy on religion is tolerance, and an expectation that religions will eventually wither away on their own.