OK, let's take a little reality check here:
Luntz's Dem focus group was on camera this morning, far and away their most common comment about Obama boiled down to them still loving him but being disappointed in the results so far, only a handful of them had decided (or had the balls to say out loud) that he was a phony. Many of them said something to the effect of 'He hasn't really been given a chance' (Remember, these are Democrats, not rational humans).
Brown is a MASSACHUSSETTS Republican, not a Tennessee or Texas or Wyoming Republican. He's not thinking along the same lines as some kind of sane Ron Paul, and he wouldn't have won in that state if he was.
A lot of Republicans DO want to see some work done on health care, just not the same KIND of work Obama had in mind. Obama wanted 'Free' health care for some core Democrat constituencies, funding for that at the expense of constituencies that weren't as large in numbers of voters and weren't his voters, protection of the American Trial Lawyers Assn from any kind of tort reform, and special treatment for the unions (I'm sure he wanted to have the Feds pick up the tab for the UAW retiree health fund, but that wasn't the bill he got, as things eventuated). A lot of Republicans would be perfectly fine with a health care reform act that actually reformed something instead of being a blatant vote-buying, special-interest payoff bill...things like 0 some kind of limit or reform of tort liability, portability or some kind of interstate competition in health insurance, and incorporating some sort of last-ditch way to cover those shunned by free market insurers. It's not that the GOP repudiates any kind of health care reform, it's that the existing bills are anything but a 'Reform.'