If someone with a PhD and decades worth of research and practical experience in cutting-edge ML/AI/semiconductor tech wants to immigrate to the US, it's idiotic to put them in the same lottery as a $50K/yr "IT consultant" from Infosys. This is exactly why the US completely lost its edge in hi-tech manufacturing and is now losing ground in software/apps as well.
You want your junior engineers to have jobs and gain skills? Maybe don't say no to the best talent from across the world who can mentor them.