For starters :
- Modify the tax code to allow individuals the same tax incentives as employers
- Remove intrastate insurance segregation
- Legal reform to reduce predatory malpractice lawsuits

You call that opening up the market? OK.

Agree re the third.
Second might work if you have an exemplar participant in mind that is constrained by state boundaries. Do you?
First seems like delaying the inevitable.

What about reduction of brokerage fees and other admin costs of private schemes? That seems like an obvious 20% saving right there. Obama's plan includes a proposal for that. And what about funding care for the elderly as costs rise inexorably? Unless there is a plan for that, all the rest is just postponing the inevitable IMHO. A cynic might propose leaving the issue with Medicare and then blaming/bashing Medicare for the predictable results, but since you can reasonably expect to have to rely on Medicare yourself one day, perhaps that's not a great plan. ;-)