On the side of common sense …

… Judge Rules Against Donna Quixote | The American Conservative. (Hat tip, Dave Lull.)

…  there are no legal authorities requiring that the court use a defendant’s preferred pronoun. Though different courts have adopted different practices in particular instances, there is no rule requiring it. Nor is there a law. “Congress knows precisely how to legislate with respect to gender identity discrimination, because it has done so in specific statutes,” writes Judge Duncan. “But Congress has said nothing to prohibit courts from referring to litigants according to their biological sex, rather than according to their subjective gender identity.”