High drug prices also incentivize companies who don’t do R&D themselves to corner the market on existing drugs and raise prices.

High drug prices do not encourage cornering the market on drugs, for obvious reasons?

As for “free ridership”, the US only has so much military and economic power to compel the rest of the world to give them money because THEY own certain molecules and not anybody else. It is actually totally absurd to think the US can unilaterally set prices because of a self-inflicted victim complex.

Most developed countries have sufficient rule of law that they won't sell a drug if the creator refuses to sell it in the country. If that can't be enforced, that's too bad - as it will leave us all worse off in the long-run.