You are completely missing my point. "...It has a purpose and isn't necessarily a bad thing." Buddhist monks are humans, therefore they are biased and judgmental just like everyone else. I made no other claim beyond that. Their strength lies in their ability to challenge these tendencies; not that they don't have them. Their mindfulness meditation doesn't eliminate a tendency to be judgmental. It buffers them from turning these tendencies into things like racism and/or sexism, etc.
In the first encounter between humans and bears, the human most likely saw the size of the animal and the fearsomeness of its teeth and claws, and probably thought, "I probably should avoid this animal." A "non-judgmental' person would have walked right up to it... These people wouldn't survive.
Being judgmental is coming to a decision, racism is negatively reacting to a "probably right, but could be completely wrong" situation. They are not the same thing.