If I understood your original point correctly, it was that having country-limits for US residency was morally questionable, and tantamount to jim-crow era laws against Blacks in America.

Presumably because if you are an guest worker in the US, and of Indian citizenship, you would have a longer wait time, than if you were say from Bhutan. I classify this as a penalization by proxy.

I pointed out that if you lifted the per-country cap, you haven't solved this penalization by proxy. Even with caps based on world population, you still have a penalty applied.