The beautiful thing about being an American is that we don’t segregate ourselves into tribes and castes anymore. I know some countries still have separate castes but fortunately we don’t.

Answer to 1-4: yes fewer H1Bs is a good thing. Everything else you said is just hot air and not worth a respond. While we are at it, let’s have fixed equal per country limit it so that no single country could hijack our tech industry anymore.