When Romney gave his speech in response to the Supreme Court's decision on ACA's mandate, he touched on the problem by saying it's bad policy, and Romney called for more economic freedom, but he didn't go far enough describing all the coercive aspects of Obamacare which basically control the actions of private companies and consumers.
When Obama gave his speech he described the coercive measures by saying government can now tell insurance companies they can do this and this and this, but not that and the other, and it controls how they spend their profits -- it tells companies who they have to insure and why. All these coercive aspects of ACA violate liberty. In America we no longer consider the freedom of individuals who own businesses. In fact, though, because there is so much government/corporate enmeshment, there's hardly a true private sector company left in healthcare.
The justices on the Supreme Court read all the coercive aspects of Obamacare and they focused on the mandate and a few other aspects -- the bill and government's relationship to healthcare are unconstitutional, period. There will be many nuanced arguments regarding the SCOTUS decisions, but the fact is that that healthcare has never existed in a free market, and the coercive management of healthcare by government is not what the Founders had in mind, and it's something we should all end. We are seeing the results of government interventions -- it pits special interests against one another in a giant political war. Roberts said the court is not responisble for the political choices of America citizens -- then what good are they? If the Supreme Court can't limit government actions, regardless of what a temporary majority of voters wish for, by delcaring certain political choices unconstitutional, then the court is useless.