As a goal, the United States needs better, broader health care with lower costs. The tradition of free market competition among private insurers was given a reprieve when the proposed Clinton health care program was dropped in 1994. But private insurers have since failed in meeting that goal. The ACA gives them another reprieve, but under more stringent requirements. If they fail again, they will be demonstrating that, regardless of any past merits, free market competition among private insurers does not meet our need for better, broader health care with lower costs.
While I personally prefer a single payer system, I think we need to acknowledge, first, that the ACA is a huge improvement over what it replaces. And secondly, we should work to make the ACA succeed.
If employers and private insurers show that they’re not up to their tasks under the ACA, then their actions establish all the more the need for a different system. By strongly attacking this government program, it seems to me that you’re just adding fuel to the fires being set by anti-government ideologues bent on sabotaging the ACA.