See, liberals (generally not good at science, cause it helps to be smart) don't get that causes have to preceed effects, or are too ignorant of history to realize where the tax-exempt status of health insurance as compensation came from.
That status, a step to help Kaiser lure and retain workers (a band-aid for another case of goobermint economic meddling, in fact) spawned the health insurance business, the only business that think emulating the government is the right way to run a business. Collect your pay before you deliver anything, regulate the actions of your customer, then abuse them when it's time for you to fulfill your end of the bargain. Not saying insurers are uniformly bad, but when people complain about the service they're getting, it's invariably because the insurer is acting like the government, not because they're acting like free people running a free business in a free market, yet the free market gets blamed for the situation.
ANY mandate destroys our freedom to choose, it destroys our Liberty.