Republican leadership is more concerned with personal power and wouldn’t think twice about switching parties to keep that power.
The morons running the GOP hate conservatism because conservatives are all for limited federal power. To the statists like Boehner, that’s like swinging a crucifix in front of Dracula.
Statists like Boehner and his ilk just want their turn at the reins of power so they can be in charge of the federal teat; they want nothing to do with people like Ted Cruz or Sarah Palin.
I agree that the leadership is more concerned with personal power than actually implementing the expressed values and goals of the Republican platform. But they are defeating not only the Republicans goals and values by siding time and time again with the Democrats. They are actually undermining their own power base because their support of Democrat policies has the effect of building the Democrat ranks. Key example is illegal immigration from Mexico. The overwhelming majority of these folks will go (if they aren't already there) into the folds of the Democrats.