Since when has Creationism been a core belief of the Republican Party? This nonsense is new crap that has nothing to do with conservatism and everything to do with ignorance.
I would rather lose races than compromise my beliefs.
If one of those beliefs is support for the promotion of ignorance and the oppression of science, then you deserve to lose races and you will continue to, for you deserve no place near a position of power.
Since when wasn't it a core belief? Get out of the twilight zone. By the way, the GOP will not lose races because of a belief in creationism. That is the demorat party that you must be referring to.