[dragonwriter]

> Those non-skill jobs are going to disappear soon

Doesn't really matter to the point; non-skilled (or even skilled, but not elite)) immigrants qualified for family-based immigration are quite often supported by their US-based (citizen or permanent resident) family via remittances now; bringing them to the US keeps more money in the domestic economy even if they aren't working, driving domestic demand and creating domestic jobs.

> Cutting the overall amount of immigration but raising the quality is a win

Sure, it's just a question of whether “utility to capitalists” or “ties to the US and contribution to retaining economic activity in the domestic economy” is your benchmark for quality. Clearly, you favor the former, though I can't see why.

> importing H1-B slaves which actually does lower wages for high skill jobs.

H-1B workers aren't slaves, and increasing supply of high-skilled labor decreases market clearing cost independent of whether the visa used to import the labor is an immigrant visa or a non-immigrant visa like the H-1B. I'd abolish the H-1B outright, without any additional skill-based visa quota in other categories, but also allow supernumerary (unrestricted by categorical caps) entrance with work permission and a path to permanent residency of individuals not otherwise excluded from immigration, subject to both annual fees and supplemental income taxes.