There's no travel restrictions in Xinjiang, you can just go there. Though you will have to show a pic of your passport to like 50% of cops, and answer the "where did you come from, where are you going, <insert random third, probing question>". They're still cops, but some can be genuinely helpful at times.

In any case, you're probably going to find while there is nothing recognizable as a genocide, the actual issues and perspectives these people have once you break through the surface are too complex and specific to understand while limited by phone translate, let alone form a meaningful opinion.

But maybe you'll fare better than me.