You seem to think money grows on trees. Your suggestions can't be implemented without taxing people like Bezos to death. In fact, I'm pretty sure they can't be implemented at all, no matter who you "bribe".
[Roche](https://en.wikipedia.org/wiki/Hoffmann-La_Roche) [Merck](https://en.wikipedia.org/wiki/Merck_Group) [Bayer](https://en.wikipedia.org/wiki/Bayer) [Sanofi](https://en.wikipedia.org/wiki/Sanofi)
Even supposing all pharmaceutical innovation comes from the U.S. still does not show that without the U.S. there would be none. Clearly there is a market for drugs and the U.S. is not the only country with research capabilities.
Taxes are not that much higher elsewhere. People are not being taxed to death elsewhere.
It seems the barbarians are certainly at the gates. Oh well, we had a good ride.