“Hypothetical people misuse the word nazi” is a very small problem, especially in today’s context. You are wasting time and energy and making yourself look like a nazi defender, even if you are acting somehow in good faith.

The argument you are making often comes up as a distraction. Someone will be like “The republicans wanting to put out-groups into camps is seems like a nazi thing to do” and someone like you will pop in with “well actually” and it’s not helpful. Unless you want to keep people unfocused and bickering so they can’t actually organize and cohere around fighting the villains