Because this post is about discussing the environmental impact of Apple's products. If someone wants to talk about the concentration camps, they can do it on any of the other billion posts that are specifically discussing it.
Unless Apple products are being made in the concentration camps, it's not even close to tangential to the topic of environmental sustainability of Apple's supply chain. It's just trying to derail the discussion by bringing up political issues.
https://www.csmonitor.com/World/2020/0305/Are-forced-labor-U...
https://qz.com/1811305/nike-apple-linked-to-forced-uighur-la...
https://www.newsweek.com/religious-freedom-watchdog-amazon-n...