I don't think most folks blamed the democrats for a bad economy, so much as they didn't understand why the democrats seemed focused on something that _wasn't_ the economy -- health care reform. Sure, health care needed reforming, but working on that -- while people are losing jobs, houses, can't buy their kids clothes or worry about getting them to school, and hell, just supporting their family period -- instead of working on the economy (jobs!), turned people off to the dems.
If we are under eminent attack, if there is a foreign power poised to take over the globe (i.e., ww2) then that trumps all else. Otherwise, people want/need jobs. Jobs is #1 without a _real_ foreign conflict (and yes, the conflicts over the past decade have not been real). So, each time bill the factory worker who lost his job turns on his radio or tv, it's been about healthcare for the past 2 years. It just doesn't compute to bill. "Healthcare? Wtf are these guys thinking? I have no job!!!"
And I don't know how many of you have visited such towns as Monroe, MI, lately, but it's sad, sad, sad. There's no jobs, no factories, closed-down plants, and every house a street is like this: foreclosed, retired, unemployeed, foreclose, foreclose, foreclosed, etc. You're hard-pressed to find someone on a street with an actual paying job. There's entire, brand new condo complexes -- taking up 2, 3 and 4 blocks -- all vacant.
So, in light of the jobs problem (aka, economy), all this work on healthcare is like a guy drowning, begging you to help and you going, "ok, but first, put your foot up out of the water ... your shoes untied...."