HN generally considers it distasteful to complain about downvotes, especially in uninformed ways. The downvotes are because of your false claims about the cost of study at these universities. Check here https://financialaid.dartmouth.edu/cost-attendance/myintuiti... and put in the typical situation of a frontline amazon worker and see how much they would be expected to actually pay after the financial aid is subtracted (it will be close to zero, I just checked).

Universities, especially prestigious ones are expensive in the US. But the prestigious ones also happen to have incredibly good financial aid options. The problem is the classist system that makes it difficult for a low-income person to have the CV that lets them get admitted. Paying the rest after being admitted is comparatively easy (both for the rich and for the poor). It is the middle class that is in a bit uncomfortable situation as the financial aid can still have aggressive cutoffs.