Whoa, whoa, whoa.... Whoa, my guy. Let's ease into that complex problem. Say it with me, complex problems do not have simple answers! I don't think this is a fair statement to make. I don't really know much, but from what little research I have done much of it comes down to
1. Money. Who is going to pay for all these new residency positions? If schools expand their seats, where will the funds for the necessary resources come from? While yes, you can cite NYU and Colombia's recent endowments as potential sources, that is far too short-sighted. I'm sure anyone working for a medical school can tell you to run a medical school is not cheap! Congress would need to intervene here... as far as reallocation of funds and how they are currently spent? That was a significant portion of my research. We can sit for tea cause' it's gonna take all day, sir.
2. There are way more international students interested in practicing in the United States than are currently accepted into the US for residency positions. And even after they arrive, there is a huge barrier as far as licensing goes for internationals. They basically need to rego through residency again here to practice. If you have been practicing for years in your country, would you want to do that? I don't know how much research has gone into analyzing the care internationals give vs. USMD doctors, so I won't speculate. I do know that international candidates are more likely to go into primary care though and work in more rural areas. I'm not saying to get rid of the program entirely, but there definitely has to be a better way to make this transition.