(1)portraying fundamentalist Christianity as sinister, dangerous, and antiquated, while (2) picking on those poor little homosexuals and trying to establish a theocracy to impose their moral values, like the Nazis, etc.

Just another appeal to emotions, the psychological strategy being to pit one emotion (fear) against the other (hatred), labelling those who oppose the homosexual agenda as the latter, who are actually to be feared. Middle-of-the-road Christians are the target of these appeals, as these activists have properly identified those who refuse to budge from WHAT IS WRITTEN as being beyond their sway.