There are about three dozen people being held in Guantanamo. A total of around 780 people were detained in total by the US military over a decade and a half. Of those 780, around 730 were let go. Nearly all of the detainees were granted representation and visitation rights, along with Guantanamo itself being subject to public observation & access by human rights groups. The US Supreme Court ruled that the Guantanamo detainees have specific protections, such as habeas corpus and have a right of access to the US court system.

Your comparison is between Guantanamo and what China is doing. Therefore it begs the question: when is China going to stop forcibly stripping millions of Muslims of their religion and beliefs, torturing those people, and let go the million or more people they're actively holding in camps? And does the fact that China keeps building more camps, indicate that it's all going to stop soon? Will China allow media access to the camps? Do those being held in the camps have any rights of representation? Do prominent human rights groups have routine access to the camps for observation purposes? Has China publicly declared where every camp is located and how many people are being held in the camps?

Although, arguably, punishing employees of 3M or something because the government misbehaves is not obviously good.