To be honest, it would be faster to let NPs free to practice independently without a safety net and watch as shi*t flies in the fan. Unfortunately, I don't think it will take anything less than a few really bad outcomes (read: dead bodies) before insurance companies, politicians, and the nursing lobby change their tunes.
Not even dead bodies will change the nursing lobby. No matter how high it stacks. It will still be spun as somehow the fault of the physicians. Probably, it will be that we didn't support them enough, you see, that is why the death toll accrued.
There has virtually never been a political body that didn't seek, above all other priorities, to maintain itself. Cognitive dissonance on the scale of professional lobbying organizations ensures that any result that suggests that the group and its constituents may actually be the source of the problem ensures that the problem is promptly reframed so that blame is deflected.
NPs aren't going away, and they aren't going to be "stopped," either. If you openly oppose them, you set yourself up as a scapegoat. There is a mythology that doctors are all avaricious, sinister, operating in cahoots to keep the practice of medicine inaccessible to goodhearted nurses and others who would make it more available to the people. Questions like "How do we stop nurse practitioners?" feed into that perception. If you are going to even pose it, you gotta build your deeper concern right into it. Like:
"How do we stop patients from being harmed by underprepared, undereducated, and inexperienced, if well-meaning, midlevel providers?"
Yeah, it is longer, and not as catchy, but a lot harder to twist into evidence that the docs are trying to undermine other professionals for their own financial gain or out of some kind of mean-spirited guild based protectionism.