In my neck of the woods, this is called "cutting off one's nose to spite one's face."
Centrist Women Tell of Disenchantment With Republicans
You can't insult, belittle, demean and threaten 50% of the population and expect their support.
What's hilarious about this is that President Obama doesn't have to say a word. He's just standing back and watching the Republicans guarantee his re-election. The level of cluelessness on their part is just astonishing.
But I suppose that's what happens when you put purity and ideology (and religious precepts that absolutely do not belong in government) ahead of actually governing.