You always have the right to defend yourself. Abusive people will act like you don't have to right to stand up to them, disagree with them, voice your opinions, express your emotions, or say anything in response to their criticisms, accusations, sarcasm, bullying, rudeness or cruelty. You have every right in the world to stand up for yourself. Unfairness, disrespect, hypocrisy and double standards are red flags for narcissistic and emotional abuse.