Too often in recent years, the monolithic gay voting bloc herds into the voting booth to cast a ballot for the Democrat. Once in power, most of those Democrats quickly turn their backs on one of the most reliable constituencies that put them in office in the first place.
But on the other:
Unfortunately, a gay vote for the current Republican Party, which has been hijacked by fundamentalist Christians hell-bent on stripping gay citizens of equality, is unconscionable.
Or, in other words, "We care less about your record of screwing us over than we do our stereotypical and prejudicial beliefs about the other party."
Hence, Republicans won't get gay votes regardless of what they do, and Democrats will get gay votes regardless of what they do.