You're focussing exclusively on violence. If Israel adopted China's Xinjiang methods they would:
1. Take direct administrative control over Gaza
2. Place any man even remotely linked to violence or Islam in a prison camp and use them as prison labour to produce products
3. Monitor all women and prevent them from having births
But, violence would go down. In Xinjiang the Muslim population is shrinking as the authorities prevent reproduction.
Following your logic you are saying you would find this less objectionable. Is that actually the case? I suspect not.
I write this to hopefully expand your view that more than one situation can be objectionable, that not everyone is American or Israeli and it is possible to analyze a situation on its own merits and say "huh that's bad".
China goes to great lengths to minimize actual violence, which minimizes attention, which lets them focus on shrinking the population of Uighurs. I doubt Israel could actually do this in Gaza, but I think it would be worse if they did.