It’s not just the border we have to worry about. H-1b is a mixed blessing.
I don’t think it was ever a “blessing”.
It was obviously always based on a fraud - that there were not enough S/W people to meet demand. It was always about cheap labor and nothing more. The comp sci schools were churning out plenty of good graduates even in the ‘80s but there were always the Reed Hastings and Bill Gates of the world who competed on price alone with their crapware.