Pretty much. Never ascribe to malice what can be adequately explained by stupidity.</hanlon>
Were I inclined, I could probably do something up on how the differing parties of Congress believe their pet economic policies will save America and the world, and why, in their own world-views, the opposite viewpoints will not. Unfortunately, I'm not. Basically, though, members of both parties are in love with power, and will not willingly take any action that will risk that power, which includes driving their country off the edge of a cliff. However, unfortunately, this also means that they're only willing to go so far in preventing it from driving itself off a cliff, and their ideological preconceptions, combined with an anti-intellectual malaise, lead to a certain specific mindset that promotes ideologically sound policy over a short-term destructive, but ultimately necessary (in practical terms) policy.
...yeah, probably, but even a stopped clock is right twice a day.