LOOL well thats what you might think, but not all your people might think the same way, afterall if all pakistani thought the uygur issue is Chinas own internal 'ethnic conflict'(never mind that there are several tens/dozens peaceful ethnic groups in China.lol) matter then we wouldnt be hearing news like this:
http://www.nytimes.com/2011/08/02/world/asia/02china.html?_r=0
China urges Pakistan to expel Uighur Islamic militants - BBC News
China Wonders if Pakistan Is Responsible for Xinjiang Violence | The Diplomat
Or maybe its also commie propaganda? lool
As for your last point about Pakistan getting involved in another sectarian Saudi/Iranian sunni-shia war, LMAO, you really believe Pakistan is getting involved because its a 'Saudi Ally'??lool Come on bro, be real. Pakistans leadership(not its civilians though) has already been bought out by the House of Saud, everybody who has even a little bit of knowledge in the middle east knows this fact. Its for the same reason you cant stop their Madrassas funding and Wahabists ideology imports from your country, even though tens/hundreds of thousands of your civilians died/are dying and will keep on dying as a result of this violent ideology