What parts of Obamacare do people find most worrisome?
I find two different things worrisome. The vast amount of misinformation, including that I've read in the answers to this question. The claims made, with no support and no evidence, are tremendous. For example, Congress does have to participate in the exchanges, not receive employer provided health insurance from their large employer (Federal Government) like every large employer must provide. So, they exempted the Federal Government from a portion of the employer mandate, not themselves from participating in the individual mandate or the exchanges. (see Administration moves to limit, but not end, health insurance subsidy for Congress for more info on what Congress did to themselves).My biggest concern is that it is not single-payer. If you really want to bend the cost curve, you would go with single-payer. All the arguments about government rationing health care ignores the fact that currently insurance companies ration health care. Some of the rules of the ACA force insurance companies to stop doing some of the rationing activities (e.g., cover those with pre-existing conditions, remove lifetime caps), but setting deductibles, limiting the number of mental health visits, etc. are all ways that the companies ration health care. It is necessary if we want to bend the cost curve, but none of the ACA provisions really do enough to bend the cost curve. A big way is to eliminate all the administrative paperwork for filing for insurance claims by everyone. It is a total productivity loss for consumers and a huge administrative cost for the doctors. You can do that through single payer. And before someone jumps with the socialist thing, Canada is not a socialist nation and their businessmen think we are crazy (see Canadians don’t understand Ted Cruz’s health-care battle). Given our crazy political process that thrives on invective and rhetoric over facts, I guess the ACA is the best we can get, but I am most worried we don't have single payer (with a private insurance system for people who want "platinum" benefits). But, given where we are, I'd rather have people insured and it is working in Massachusetts without most of the negatives people are claiming. Wherever one stands on the law, I'd suggest folks look at some fact-checkers like A guide to Obamacare claims, pro and con. There is way too much misinformation in this debate.