Intolerance is evil. It isolates a system from fresh information flows, hinders learning and development, reduces adaptability. Actually the fear of losing which feeds intolerance withdraws a person (company, society) from the game. The same fear robs the mind which would otherwise help to realize it and switch on the mechanism of the maximum acceptance. By the way there is nothing hellish in the “intolerance to intolerance is intolerance” paradox, it just shifts the subject from ethical to legal terms.