Poor Little Columbia University (No More Welfare for Billionaire Corporations)

Their refusal to deal responsibly with antisemitic harassment lost them $400 million on federal research funding.  Their endowment:

" For the fiscal year ending June 30, 2024, the total value of the endowment was $14.8 billion. Columbia University produced a return of 11.5% on the managed assets in its endowment portfolio for FY24. The University’s trailing five and ten-year returns are 8.5% and 7.4%, respectively."

A 5% withdrawal would provide $700 million for research.   Why do billionaire corporations get welfare?