The correct use of a term/name always shows understanding. The incorrect use of a term/name shows ignorance. Your ignorance is not my problem unless I am trying to have a conversation directly with you and it is getting in the way. At that point I have to decide whether you are expressing willful ignorance or just "factual" ignorance and might be open to discussion of it with me. If someone you are talking to is expressing willful ignorance, one says, "Your ignorance disgusts me" or something of that nature and you walk away. The person does not disgust you, just their choice to be ignorant about the subject/lack of effort to be knowledgeable.

Ignorant people are entitled to opinions but those opinions are likely to be ignorant! Because I have a different opinion and/or believe I am more knowledgeable does not give me a right to express my opinion in order to "shut down" another person's opinion or expression. What is that expression, "like wrestling with a pig"? You just get all dirty and the pig enjoys it/doesn't care? We all know the media, social media, etc. is full of ignorant opinions, each trying to yell louder than the other. Jumping in that fray just makes more mud, does not clear anything up for anyone.

If I am called a term/name and have a strong reaction; that's my problem, not the person calling me the name! I have to look to see where my hurt or unpleasant feelings are coming from and deal with that in me, not with the other person. There, too, "Your ignorance disgusts me" and walking away works well but in that case it would be the person's ignorance about me.