It would be similar if your stock dividends were your sole irreplaceable means of support. So, you sell your stock and give the money to MIT. Now you can’t buy more stock, and therefore have no future income. Permanently ending your career to send your kid to college is an unreasonable sacrifice, in my book.
No one is arguing it is some sort of human right. The argument is that being the owner-operator of a small business is a financially different situation from having a lot of liquid wealth sitting around. And that smart universities should figure that out so they don’t accidentally lose good students over silly structural flaws in their financial aid processes.