My biggest worry about the US setting up some sort of safeguards is just that I do not trust anyone in a position to do so to do a good job. Damned if you do, damned if you don't.
It all feels like rich and powerful people petitioning the state for more money and power. Any regulation with teeth will necessitate regulating open models, which will destroy competition and create another stagnant, cartel-esque duopoly.