To judge is instinctive and intuitive, it'll classify who is a friend or a foe. ^^ That is why it is really very hard to imprint it into people's mind and keep an open mind.
Imagine in the past, we recognize our parents, our friends and when we see them, we're at ease. When a new face arrive, we instinctively judge them, not because we're biased or because they are asian/black/white/yellow/lesbian or gay. It's more on the reason that we want to classify them as a fellow tribesman or a threat.
That's why no matter how nice an idea this subject is. ^^ I can't agree with it. Still, I like it, and I can respect it.
The topic's title should have been, how to keep an open mind or learning to accept. <-- then that blog would have been truly perfect. ^,^