The fact is that America is not only stealing assets from outside, but they are also stealing talents from other countries. In many cases, many of the high-tech companies in the United States have Asian nationals. Also, Citizens of different countries work from all over the world in different sectors of the USA. The USA brings those talented heads to their country with the opportunity due to infrastructural limitations and underdevelopment of those countries. But these talented heads are not made in the USA. They are made in other countries but they work in the USA. Countries that never see the face of development for this talent smuggling.
No one is holding these people hostage. They come to the US voluntarily, often having to jump through many hoops to get visas, because that's where their talents are appreciated.
Choosing migration of all the things to blame the US really shows that you know nothing and just want to twist everything into your preconceived image. Start by cleaning up your own shithole so that people wanted to stay there.