Nope, I'm happy to answer that one... calling a fellow Republican a "communist", though, that one falls in my category of offensive.
To answer your question, no it wouldn't be rational to support candidates whos stated views "entirely contradict" the principles of the party we support together. It is only YOUR OPIONION, though, that Arnold's views "entirely contradict" Republican principles. He fails to push the principles that YOU find most important, obviously homosexuality and abortion, but those two positions are not the ONLY ONES on our platform. Other Republicans feel that the position of California Governor doesn't have any power over such legal rulings anyways and Arnold does support many conservative principles that the Governor CAN enforce.
It is a difference of OPINION and STRATEGY, not fake or real Republicans.