I simply paraphrased what the GP said. If you have an issue with their idea, it should be addressed to them--I do not claim or endorse it.
FWIW, I think it's rather silly, even though it does describe the current situation rather accurately: through Medicare and Medicaid the US taxpayer, through being unable to negotiate fair market prices has long been exploited by private corporate interests--and that's before one considers that this industry also benefits from large governmental subsidies at every stage of R from university grants on up.
I do not think it's fair to compare what they might be selling drugs in Africa or Romania to what a U.S. citizen pays. As you've said, that might be closer to what the market will bear in those locations--but it may be worth examining what other developed countries are paying, and if we are paying significantly more, it would be prudent to ask ourselves why.
Surely it wouldn't have anything to do with the pharmaceutical industry being a major contributor to political campaigns, or single-handedly keeping major news outlets afloat through advertising contracts.
GP also took issue with what Tesla charges in China as compared to what they charge in the USA, all while ignoring that Tesla China has a gigafactory and benefits from the economies of scale and cheaper labor which is present in that market. It would be silly to expect that a Tesla in China would be anything than drastically less expensive than one built in USA, as that's the very argument all other corpos use for producing everything there.