I'm not sure where you got your numbers, but I believe most of the people newly insured are enrolled in the expanded Medicaid or could not afford insurance without the taxpayer provided subsidy. Yes many of us could not get insurance on the open market due to health reasons, but I believe we are not the primary beneficiaries. I do not qualify for a subsidy and shelled at over $26k in premiums, deductibles, and co-pays last year for my wife and me.
I have nothing against insurance companies. Just consider having to pay for a quad bypass out of pocket. They are not the cause of high insurance rates. Obamacare basically broke the business model for health insurance with the rule they have to take all comers and not charge based on risk, just age.