There's another issue that is going to sink Republicans if they refuse to drop it- homosexuality. It is becoming (or has become) an accepted aspect of human behavior. Republicans, because of their decision to let evangelicals into their political tent, are now unable to show any advocacy or tolerance, openly, for homosexuality. It's really a shame because what was once a true Republic-an party, is now becoming a party of religious zealouts, homophobes, xenophobes, and people who are always ready to go to war with a Middle Eastern country. They have no problem spending and growing government, especially if it is to instill some fundamentalist agenda.
The GOP that existed in 1964 is gone. Fiscally responsible, small government, non-interventionist has given way to the disgrace that the GOP has become. After the last GOP convention, where they literally voted away everything that resembles a Republic, and voting through delegates, I changed my status from registered Republican to Independent.