Well here you go - this is the perfect example to share with you as to why most Americans didn't/don't want "Obamacare". We, the voters, have no confidence that the current system+administration+Congress (or previous 10 of each!) could've created a system for "health insurance for all" that worked and was efficient. It's not anything against Obama - it's that we've seen administration after administration try to implement some big, sweeping group/plan for 20+ years and every one of them has turned into an inefficient holy hell of a mess. The most recent example of a major #$%&-up is Homeland Security (which I think is the last major agency created).
If the American public believed that the current government was capable of delivering state sponsored health care in an efficient way, every Democrat and Republican in this country would've voted for it. So don't think of "those who are against Obamacare" as anti-Obama, but rather anti-inefficiency (or anti-bigger government).