I agree with you. I don't think there's anything wrong with breaking the employer/health care connection, but they want the labor market flooded so they can give ultra-low wages. One result will be they get to keep all the money formerly spent on employee healthcare rather than having to use it to attract/keep good workers.
Employers were playing that game 160 years ago. Lewis Tappan (as in, stoves and ranges) once suggested bringing Chinese coolie labor in masses to the U.S. and sending all the black slaves "home" ...... imagine what the civil-rights movement would have been with Chinese rather than black marchers .... and the ChiCom government behind them!
The rationale was, Chinese were cheaper to keep on the job, even though they were "free".