I had a landlord like that; an FDR, depression-era Democrat who has so much pride in the label that he'd rather cut off his right arm rather than deny it. It's sad, because he had to exercise the most breathtaking cognitive dissonance when I talked to him about the facts - even denying that Slick Willie ever had sex with Monica; the Republicans made it all up.
For many of these, it is just that the alternative is so much worse to their thinking, their utterly unfounded brainwashing that the GOP is only for the "rich" and want to squash the poor. They are not so much for abortion and same-sex "marriage," they just pretend, in their cognitive dissonance, that these issues aren't even there at all.
bump