That's not true. I haven't said anything is irrelevant simply because I don't like it. I've said it's irrelevant because it's not relevant to the point I've made. Whether something is legal or not is irrelevant because my argument is not taking a position on the legality of something. It's also irrelevant if the point deals only with the semantics of what a specific word means because my argument is not about the definition of the word, it's about the deprivation of a gain in an exchange. It's also not relevant if it's a moral argument because I'm not against piracy and don't care about the morality of it. I'm only arguing about the justification people are using to pretend that piracy is not depriving someone of the value of their work. My point is in asking people to simply admit that they are stealing when pirating something. Otherwise, piracy would not be a thing. There'd be no reason for the word "piracy" as the acquisition of the content would not matter if it was something other than a form of theft.
But, sure... It's just a wordy version of "nuh uh". Now keep telling me you're not a dishonest person.