How so? Stating your thoughts with conviction ends any hope of a reasonable discussion? Maybe if you're afraid of confrontation. For me it's an invitation to debate.
You find labelling people is in invitation to a debate? So if you find yourself in a position where you desperately need a job but upper management says "I think people of race X are <racial slur>" you would take that as an invitiation to a debate? Saying a person is unethical is labelling them. That's what I object to, not debate or confrontation.