There is none. People just like to parrot that Big Pharma line because it "sounds like it makes sense, so I guess it does?!" Big Pharma already abuses the pate

There is none. People just like to parrot that Big Pharma line because it "sounds like it makes sense, so I guess it does?!" Big Pharma already abuses the patent system so much, like inventing something and then when the 20 year monopoly has passed they create a new patent that says "this same drug can be used for Y purpose, too" - and bam, another 20 year monopoly on the exact same or very slightly tweaked recipe. Tens of thousands are already dying every year in the US because they can't afford healthcare. If the argument is that "if we reduce the Big Pharma profits then it would be even worse!", I'm sorry, I just don't buy it. If drugs were cheaper, a large portion of those people could be saved (yes, I realize there are problems with the healthcare system, too, but those would also be fixed by Medicare for all).