I can only assume that's accidental. You're the 17th most active person on HN, so I'm certain you've seen an overwhelming amount of evidence of how skilled immigrants are immensely beneficial to the US economy.
The H-1B is not the only path to a green card. There are many ways, every case is different, and pretty much all of the paths suck, even if you do everything right.
This decision only makes all of those paths worse.