A lot of the training received in the reeducation centers was vocational training that modernized the labor force of Uyghurs in Xinjiang enabling them to get better jobs than they used to have
If the USA forcibly put Muslims into camps and tried to justify it by saying "we're giving them vocational training to modernise the labour force and enable these Muslims to get better jobs", would that be okay? Anyway we're obviously not going to agree on this topic so maybe there is no point in pursuing it further.
I think the US is a democracy, just a flawed one. The electoral college is a big flaw because it gives rural states a disproportionate amount of power. But there is still a democratic process in the US. Look at how Zohran Mamdani has become the Democrat candidate to become NYC's mayor, despite the fact that many leading Democrats didn't want him to be the candidate. The primary voters made their voices heard.