Poor equivalency argument. Unlike fags, slaves couldn't help that they were born Black. War resistors were (ostensibly) acting on conscience. Homos are simply amoral degenerates seeking to destroy the bedrock of civilization by expanding its definition so broadly as to render it meaningless. They're social Marxists, or at least the pawns of that ilk, whether they know it, admit it, or not.
Of course it's not designed to be anything so rational as an argument. The typical government school grad of today wouldn't know a logical argument if it bit him. But he is well-tuned to be sensitive to political associations trumped up by the media elites...
The contemporary era is one of feelings, not thoughts. That won't change until we all toss out the TVs and discipline ourselves and our families to regularly read good books.