And? You posited a hypothetical where you’re asking whether we would take a stand in favor of an issue that was completely nonexistent at the time. As has been pointed out already, there was no “gay marriage” stance in 1916. You’re asking whether we would, if we woke up tomorrow as the 1916 presidential candidate, call a press conference to declare support for an issue that’s on nobody’s radar because radar won’t be invented for another decade.
Meanwhile, learning that politicians place political expedience before personal morals isn’t exactly an earthshattering revelation.