Unrestricted immigration for basically anyone who can prove their mettle (whether by educational attainment, rigorous aptitude testing or just by earning money) is ballsy but could work.

It would require US to start building a metric shitton of housing though, and fast. Otherwise you just get what Canada got, or worse.

Gold standard? That's batshit insane. Like Karl Marx tier of bad fucking ideas on how to change the way economics work.