Bruh, just look at a dictionary. It's a word with multiple acceptable definitions. So it just depends on how you define gender, and oftentimes people differentiate it from biological sex. Almost everybody will agree with you if you argue 2 biological sexes, so if that's what you mean just be clear.
Negative utilitarianism is a form of negative consequentialism that can be described as the view that people should minimize the total amount of aggregate suffering, or that we should minimize suffering and then, secondarily, maximize the total amount of happiness. *Negative Utilitarianism*