Your vote on this answer has already been received
We make judgements all the time. Without this ability, we wouldn't be able to cross the road.
It seems to me that what's important is to have as wide a frame of reference as possible, to be open to other opinions, and to review one's judgements to see whether (as far as possible) they were 'right' or 'wrong.' Also, from time to time, to keep one's opinions to oneself - because that way we may learn something.