One thing that I have learned on AR is that it is really easy to get under some peoples skin. They go through their entire life believing that the sky is actually green and anyone who points out the truth to them becomes the most hated object on the planet.
I am not sure how a person gets to the point in their life where they can not stand having anyone contradict them, but I am sure that it all starts out in childhood. I have a strong feeling, and maybe some proof, that people who got picked on as kids, more than likely becuase they just did not fit in, turn out to be the ones who do not like their ideas questioned. Emotions rather than logic rules their lives and their idealogy. Whatever feels good, at least to them, is what is important.
Under the guise of helping others, these people go through their own life, attempting to not only help themselves, and not help others, but also to build up their own weak ego. All of the years of being an outcast and a wierdo, have caught up with them, and now they start to thrive on being shocking. They find that they can build up their ego by shocking and disturbing others. But there are problems.
By being proud of their freakiness and wierdness, they must stand for things that are so out of the normal range, that they place themselves into an untenable position. They become so locked into what they veiw as the correct way, that they will never retreat, no matter the proof.
There are at least a few of these folks here on AR. We all know who they are. We have all attempted to argue rationally with them. We have all felt their wrath as they fought to defend the "green" sky. We all know that it does no good to use any facts of logic when dealing with these people.
There is only one thing left to do. Keep winking.