Why not? All they have to do is make a single payer option available. Make it functional and accessible, and people will switch to it as their current insurance policies end, or when they move to their next job. The health insurance stock market will likely initially dive, then stabilize into a long downward slope. I’m sure the feds have all kinds of “quantitative-easing” tools they can use to make the process less painful for the ownership class. Whatever pain they do feel would be a necessary consequence of the wrongs they have committed being made right.