There is plenty of blame to go around; the left will mobilize to protect its pet programs as swiftly as the will the right. And you're right, resolving this issue would take a huge effort and--here's the kicker--compromise by principled yet pragmatic lawmakers (such as the Founding Fathers who the Tea Baggers claim to revere so much). These are becoming a scarce breed in the Republican Congress and if the Tea Party has its way, will become scarcer yet. There has been a steady parade of legislators, past and present, coming out and saying how the environment in DC is becoming poisoness--the worst its been in their memory, making actual legislating in the harder and harder. There can be no doubt where the blame lies for this.
Yes, the blame game can be counterproductive, but so is burying one's head in the sand and ignoring what's causing the problem. (If these morons had their way, they would have forced the US to default on its debt--is there any better piece of evidence of their irrationality?) The BEST thing that could happen to this county is for the Tea Party (and the extremists in the Republican Party) to go the way of the No-Nothing Party, their 19th Century counterparts, and to do so as soon as possible, so that some semblance of sanity can return to Washington.
Note I am not saying that the left doesn't have their share of nut jobs and extremists, but they are not the ones currently poisoning the well and making impossible the very thing you say is necessary to get a grip on and solve this problem.