One doesn't support conservatism by voting third-party or staying home when your choice is between a RINO and a Democrat.
Actually, it's not naive. It's entirely logical. It's also "big-picture" oriented.
Voting a liberal into office on a Republican ticket basically destroys the conservative option for government. When voters no longer have a choice between conservative and liberal the entire political landscape will shift radically left.
In the long run, the damage will be significantly greater to the conservative movement AND the country then a temporary democrat majority or president.
Do you realize that this Democrat-controlled House and Senate have a vested interest in the United States Of America losing the War In Iraq?
This is the long term view that the "win now at all costs" crowd accuse us of not having.
If the Republican Party does not survive as a force for Conservative governance, and it's dangerously close to loosing it now, it will take decades to build a new conservative party. The country will have turned socialist before that can happen.
Nominating Rudy will be the end of the Republican party, and ultimately, the end of our Republic.