The right vs wrong question seems straightforward. If the people in these concentration camps are suffering, then it is wrong. If they are unable to speak about whether they are suffering, then that is also wrong.
It's only a "story planted in [your] mind" until it happens to you.
Much of the western world is influenced by Kantian ethics [2], of which a central tenant is that the end (potentially greater societal stability, in this case) is not justified by the means. This system of thought does not seem to hold much sway by the CCP, and I believe many disagreements can be traced back to this point.
[1] Google "Stanford Prison Experiment" [2] https://en.wikipedia.org/wiki/Kantian_ethics
But I'm glad we can trace some disagreements regarding whether specific actions are ethical back to differing ideologies. If we can abstract some of these ideas it should be easier to have conversations that are a bit removed from emotional factors.
I don't know much about Guantanamo. Who is currently held there? I've read they recently expanded the facilities but I'm not aware of new arrivals.
https://www.independent.co.uk/news/world/americas/us-politic...
[1]: https://en.wikipedia.org/wiki/Guantanamo_Bay_detention_camp