The "we get egalitarianism from Christianity" is the most heinous form of Christian revisionism. If it weren't for the Internet and everything being recorded in the digital age, I imagine they'd be claiming gay rights in fifty years, too.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell