Here's a major reason why:It destroys ERISA.
"The reality is that once Erisa is broken the whole universe of business benefits will be distorted by Congress’s gravitational pull. For instance, some employers are trying to save on insurance costs by giving workers financial incentives to lose weight or exercise more. Pressure groups such as AARP and the American Federation of State, County and Municipal Employees are demanding that Democrats prohibit this practice as discriminatory. “If you give one person a discount, someone else is going to end up paying more,” an AARP lobbyist told Kaiser Health News. Well, yes. That’s the point.
The employer-sponsored system has its problems, but one of them is not a lack of Congressional supervision. The House Erisa provisions are definitive proof that ObamaCare would in fact erode 'the health care you have.' "#