Comment by ModernMech

> This is despite the fact that US colleges openly and actively discriminate against US citizens for grad school spots for 2 or 3 decades now.

Can you provide a citation for this specific claim? I used to do admissions to a grad program in the US, and we ended up admitting mostly foreign students soley because very few US citizens actually applied (probably only 10% of apps). Whether that's because they were not qualified or couldn't afford it I do not know. But it's not because they were openly and actively discriminated against.