So no sanction at work for calling a co worker a nigger then?
What about vulnerable adults? Those who can't answer back.
Those are both fair and very difficult questions.
In the first case, that is such an extreme insult that one could potentially see a case for the employer becoming involved. However, a preferable outcome would be for the insult's recipient to use their own freedom of speech to communicate what a cunt the other person is being!
The second case is clearer in a sense, because a legally incompetent adult has a similar status to that of a child, and so should be treated similarly.
At least you can't say I'm not tackling the hard cases head on! Ingenuously, one might say.