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That's just one (big and easy to recall) example. There are countless.
Spending public money on public research grows the economy. Cutting it is penny wise and pound foolish.
I work at a biotech. We have $150 million in private funding. My biotech wouldn't exist, and I wouldn't have a job if it weren't for decades of public research doing the foundational work that allows us to target a protein to make a drug to help people. None of that would exist if not for NIH, NSF etc