Since you are suddenly interested in electibility: How are you going to convince those majorities who think that gays should be given domestic benefits, who think that abortion should be legal, who think social services for immigrants are necessary for the public peace, who think that conservatives are a bunch of Taliban who want to take money from them to give to the rich, how are you going to convince them to renounce everything they believe in and vote for a doctrinaire conservative?
Do you really think your cause is advanced by "glorious" defeats?
If you lived in Oklahoma, I'd say go to it, you're a sure winner. If you lived in NYC, I'd say get behind Giulianni or pay the price in defeat.