I was thinking Gen just kind of missed the point in his post.
On Savings... You are correct, it would not lower the cost of providing HC, just help lower the cost of insurance. I have never claimed otherwise. It was PLC who offered the strawman claiming that I thought this measure would be a miracle cure for all the costs associated with HC.
A point that PLC seems to have missed but you picked up on, is that while countries with socialized medicine may spend less on HC, that doesn't mean it actually costs less in those countries. I have asked supporters of UHC and socialized medicine to explain how it reduces the cost of providing care yet they never have an answer, they just insist that it does, by magic I guess.
State sovereignty... Does the state have the power to bar you, as an individual, from purchasing products or services outside of the state in which you live? I do not believe the states have such power. You and PLC see it as the state regulating insurance companies but the state is actually regulating the liberty of the citizens of their state by telling them what they can, and cannot purchase and from whom. Substitute a different product or service in place of the insurance policy and this is clear.
Take food for example, California passes regulations that only certified organic foods may be sold in California, meaning that citizens of the state may only purchase state certified foods. Because they'd cut themselves off from 98% of the food produced in America, it wouldn't take long before the state finds itself in a food shortage and the cost of food in Claifornia skyrockets. Now I ask... Do you believe California has the authority to do this?
You may point out that it's absurd, that California would never be foolish enough to do such a thing, but that is exactly what they've done through the regulation of insurance policies.