OK, I'm not going to get into an "ignorant-for-ignorant" name-calling escalation here. I'm just going to say that you in your assessment you have failed to realize that time has three dimensions: Past (what he did in Mass.); present (his current healthcare plan); future (the power that can be wielded by a Democratically controlled Congress).
My first question: Based upon your own acknowledged awareness of what happened to Romney's past plan in a liberal Bay State with a liberal legislature, what makes you so cocky (cocky enough to label another as having "astounding...ignorance") that his current plan would remain as pristine if passed at the fed level as you claim it would?
Is not the current Congressional body leaning to the liberal left (like the Bay State)? Is not the future Congressional body likely to remain leaning to the liberal left? If MA's legislative body could override eight of his vetoes there, what assurances can you in your "astounding...prescience" give us all that the Dem-controlled legislature wouldn't also override key vetoes...or worse, join hands with Romney from the get-go to settle on a "compromise" plan?
Somehow for you, the pristine present overrides all your past knowledge about what happened in Massachusetts--and keeps you from applying that knowledge and sensibilities to the future.
And thin skin abounds as well. The term ignorance means a lack of facts...it is not an insult. You have to understand the dynamics of the politics in MA...there are very few Republicans in the masses, much less running for office. To MA standards, he was considered too conservative and therefore lost a lot of peeing for distance contests with the Dems in the MA Legislature, even on things that we would deem liberal. That extreme dynamic is not present in Congress and therefore he would have an easier time getting his plan passed. Therefore, your concerns are moot.