"you blind fools"? Does that mean you think I'm a Republican?
No, I just believe in knowing my enemies.
Anyway, so you think voters woke up on election day in '06 and decided, "Hey, I wonder who I should vote for? Hm. I don't know about these Republicans, let's vote them out!"
No. Conservatives had been complaining about the Republicans in congress for a long time before, and their complaints had been building for a while. Republican power was in decline long before '06; it just takes a while for even party loyalists to finally give up. Elections like these are lagging indicators.
It's also funny that you talk about Republican leadership and voting as a bloc since a whole lot of their problem during that time period was that they had none at all! They were completely spinning their wheels and letting the Democratic minority stand in their way. Maybe you didn't watch as day after day they tried to get things together on the floor of the congress but failed to get their proposals through. CSPAN is your friend.
In the end this is what really killed them. They spent so badly BECAUSE the had no leadership reigning them in. They didn't act like a party or conservatives, but instead acted like selfish politicians voting money for their districts at the expense of the whole country. And why not? There was no leadership to gather the party against such behavior, so anyone not voting himself money was effectually harming himself.
In the end yes, the conservatives punished Republicans for their spending, and it's unfortunate that such spending has been associated with the Republican party at all since the real story involves the opposite: without congressional leadership there was no real Republican party in congress, just a bunch of congressmen with (R) next to their name.