The states insurance commissioner is the one that allows or disallows an insurance company to sell insurance in any state, not the federal government.<quoted text>
Some of the cost of private insurance is caused by state mandates. One example, in my state, fertility treatment is mandated for coverage. Purchasing across state lines would help there. The federal government can regulate interstate commerce, right?
If you have problem with the insurance requirements in your state you should take it up with your states insurance commissioner and your state representative.
Do you really wont any fly-by night insurance company selling you and other citizens in your state health insurance or any type of insurance for that matter?