Decades back, private companies funded quite a bit of basic and semi-applied research, companies like duPont and AT&T and P&G and IBM. That has really been diluted, or even stopped entirely. The corporate cutters started asking what this was for, and there isn't an obvious clear answer other than reviewing history. duPont invested in polymer science back in the 1930s and it paid off handsomely for them. But that hasn't been as clearly the case over the past few decades, perhaps in part because the money was cut.
It's all Federal now, 95+%. Good or bad, you can decide for yourself, but the Federal part is a "juicy" are to cut as well. What have you done for me lately? It's hard to justify basic research.