This.
I was just talking privately with someone, saying that it really isn't a protectionism thing with me. I don't care about having my salary potential affected by a whole new class of nurse-doctors, if only they were really prepared for the roles they are stepping up into. The public is being sold on the idea that they are equivalent to physicians, maybe even better, and cheaper, too. But the education isn't equivalent, not remotely. And patients will suffer from unnecessary harm when their NP fails to properly diagnose or treat what a DO/MD would have picked up on.
I expect that when enough such harm occurs, and when physicians get their own lobby together enough to force the issue, higher educational standards will be imposed upon DNP granting institutions. Possibly, there will be a special separate licensing pathway. Eventually, there may be three flavors of physicians: DO/MD/DNP. I think that is the endpoint that the nursing profession is pushing for, and I don't think it has to be a bad outcome, if educational rigor achieves parity between them.
It happened before. There are many parallels to what is going on with NPs now and DOs several decades ago. Their training was spotty, but they filled a need, especially in rural areas. They convinced the public that they were as good, if not better. The allopathic profession wasn't able to get rid of osteopathic medicine despite trying, so instead, they insisted that the educational standards be raised, for the protection of the public health. I really don't see any other endgame for our current situation. NPs aren't going away, and they aren't going to back down on any of the ground they have gained with regard to independent practice. The only thing to do now is to make them accept the full responsibilities that accompany the privileges they have assumed.
However, making that happen will require physicians to collaborate their efforts to educate the public and the legislatures regarding the problem. It will be interesting to see if we can summon the collective will.