Politics

It's just common sense. There's no shortage of federal land in mainland US to build camps to hold migrants in. It's a hell of a lot more expensive to fly people to Cuba than to hold them in some place on the mainland. This means they're actually deporting fewer people than they otherwise could by directing those resources to more immigration enforcement stateside. The only benefit of holding people in a secretive military base in Cuba is that it becomes very very difficult for the press and human rights groups to gain access to them.

I was a bit flippant about the Neuralink trials. But whatever they're doing to these people, it can't be anything good. Even just using them for cheap slave labor wouldn't require this level of secrecy. We do that to regular prisoners in the US all the time.

This should be obvious. You don't gather thousands of people, people with effectively no rights, in facilities that are deliberately difficult to keep tabs on them...unless you are planning on doing something horrible to them. If it's not unlicensed Neuralink trials, it's going to be something equally bad or worse. Why would you be surprised if a Nazi like Musk does Nazi shit? Once you decide a group of human beings doesn't count as human, there are few limits to the depravity you will sink to. Unlicensed Neuralink trials? Secret organ harvesting operations? Drug development and medical experimentation? Target practice for military drone development? Large scale forced sexual slavery and pornography?

When you stop seeing people as human beings, then there is precious little you cannot justify doing to them.