[trubolotta]

And millions and millions of 'conservatives' vote GOP at every election.

That stopped with Romney and the writing is on the wall. I won't support them and I think many others feel the same way. But leaving the party makes the chances of a take over just about zero. I will remain a registered Republican if I have to for voting in primaries.

[Theoria]

There is a certain battered wife syndrome out there. No matter how bad the GOP treats their 'base', people will still vote for them and defend them.