This is where I think you're completely wrong. I don't talk to someone who sees me as subhuman or irrational because I'm transgender since the vast majority of the time these folks have already concluded that since I'm subhuman and/or irrational that my arguments are invalid. Trying to break through their mental barriers as erected is like trying to dredge the Panama Canal with a tea spoon. Meaning you can do it but it's impractical. So instead of trying to engage folks that already made up their minds it's better to engage folks that are asking honest (even if insensitive) questions. Those are the folks that are worth arguing with because they're not entirely settled on an issue. But fanboys, true believers, kooks, and apologists aren't worth it by any measure. I say this as someone who's been on both sides of the fence so I have a decent understanding of the tactics employed to stay fixed in ones beliefs. I know this offends many a believer in the "market place of ideas" but reality doesn't bend to the idealism of the naive. Reality has to be obeyed to be mastered.