I am noting two extremes in the comments which miss essential truths.

The first extreme begins with a true premise, but arrives at a false conclusion. The premise: as with manufacturing, the US should be minting more of its own scientists.

This is true. The US should have a more robust manufacturing base of its own. It should be educating more scientists.

However, the conclusion does not follow, namely, that the US should ban collaboration with, invitation, or employment of foreign scientists.

You don't build such things by going cold turkey. You cannot rebuild American manufacturing overnight, and you can't increase the number of home-grown scientists overnight either. This takes time and requires deeper shifts in the culture.

The second extreme is one that denies the premise above, or at least seems to deny its importance.

Collaboration with foreign scientists is good. That is unquestionable. There's also nothing wrong with attracting scientists. The problem is not collaboration or attracting talent, but rather a kind of parasitism that tries to make up for a country's own deficiencies in this manner as a permanent policy.