It is not a case of showing NMJ to be a Bad Person. I think most moral nihilists are not evil. But the point is that if he really does think murder is not wrong, he has a bad glitch
in his thinking; and if he does think murder is wrong, but feels unable to say so, he has another glitch. IOW, he actually is in a double bind. If someone’s reasoning has painted themselves into a corner, that is a problem someone else can legitimately point out. Politeness should not restrain us any more than it should with a panoply of other logical errors.
It is not a case of showing NMJ to be a Bad Person. I think most moral nihilists are not evil. But the point is that if he really does think murder is not wrong, he has a bad glitch in his thinking; and if he does think murder is wrong, but feels unable to say so, he has another glitch. IOW, he actually is in a double bind. If someone’s reasoning has painted themselves into a corner, that is a problem someone else can legitimately point out. Politeness should not restrain us any more than it should with a panoply of other logical errors.