One of the articles I looked at, noted there were some 480,000 applications from US companies, for the 85,000/year H1B visas available.
Meanwhile, the US makes it harder to become a US citizen. The US military used to have a program where legal resident aliens could get on a fast track to citizenship by enlisting. Not anymore. DoD complains the background checks for people from certain countries are “too difficult”, so, after a year or so, they send a release letter to the enlistees, voiding their enlistment.
A few years ago, a US citizen, and resident of Michigan, enlisted in the Marines. After weeks of hazing, he either committed suicide, or was murdered, by falling down a stairwell. He was a Muslim.