Is It a Sin to Not Use a Person's Preferential Pronoun?

"What we're talking about is called a red herring. It's just an emotional distraction that doesn't talk about what were were confronted with here," he says. "He really thinks it's bad if you sstick to preferred pronouns, like if you a biological male who identifies as a woman, to refer to this person as he." He calls that ful. No evidence from scripture or tradition. The catechism is just father heran's opinion.