I submit for you to ponder that there are several subspecies or separate categories of human minds, differing as to how they view and adapt to others. These categories entail different value systems, too. Each category is wary and more or less afraid of the others. A language of labels is used to deal with the resulting fear and  anxiety.

It is taboo to even think that any other mental adaptation within social reality has a legitimate right to exist. In truth they all are imperfect no matter what they call/label each other.  Realizing that this diversity exists, some (perhaps less fearful) members of society manage to have a degree of tolerance. These are few.

Will we always exist in this state of conflict over the imperfect adaptations the we have made? Or will we eventually see ourselves for what we really are?