True, in a free market, workers should focus on wages and not health insurance benefits as they could do better buying health insurance that matches their needs on their own.
The problem with ObamaCare and employers ending employer contributions for employee health insurance is there is not going to be a free market for employees to shop for an insurance company offering a better deal. ObamaCare is a big sponge that will suck all money and regulatory power as to health matters to it and its government masters. Private insurance companies will end offering health insurance and shift to life, property,commercial and casualty line as health lines will be not economical to stay with.
Insurance is a part of one's benefit package, like pension plans, bonuses, etc. One may choose to work for an employer or not, based on the entire package. I know my employer will drop our insurance, pay the fine, and pocket the savings.