It is indisputable that the thrust of Obama's push for Obamacare was that too many Americans were being denied access to medical care, and that health care "should be a right for every American." He obviously believes insurance companies let his mother die in refusing to cover her medical bills because of her pre-existing condition.
So, Obama concluded, as a matter of morality and legality, there should be universal access to health care among Americans. Anything less is immoral.
Applying that rationale, Obama railed against the status quo. He excoriated insurance companies for their "obscene profits" and also blamed them, along with the entire health care system, for the "fact" that 46 million Americans (he sometimes said 30 million) were without health insurance.
Under his plan, all Americans would have such insurance, even those who didn't want to exercise the newly created right he fashioned out of whole cloth. Obamacare might not be perfect, but by gosh, it would take care of the access issue and so it would be worth any criticisms against it.
Of course, we knew all along that Obama's premise was fraudulent and flawed. We've been through the phony numbers before. Of that 40-plus million without health insurance, millions can afford it but choose not to buy it, mostly young people gambling on their good health. Millions have access under existing government programs but decline to avail themselves of it. Millions are not U.S. citizens. Many others are misleadingly included in the uninsured category, though they are only without coverage for a part of the year. Some experts have estimated that between eight million and 12 million Americans actually fall through the cracks, making just enough not to qualify for government programs but not enough to afford insurance. But even they can receive emergency room care.
Regardless of whose numbers you accept, Obama insisted that his plan would make sure everyone was covered. And what's the relevance of increasing insurance coverage if not to increase people's access to health care? So, it was just accepted as an essentially unchallenged premise that Obamacare, whatever else you wanted to say about it, would increase Americans' access to health care.