Non-binary gender needs to be added to character customization

[TitanMenII]

There's something called "sex differentiation" and, even if the cells starts to form as an undifferentiated zygote, most animals will inevitably develop genetic expressions towards ONE biological sex. Excluding genetic mutations or malformations, humans are male or female, no exceptions. I'm not gonna talk about animals that are actually hermaphrodites, because we are talking about humans and not slugs, so its pointless to even start that topic. In the end, your sex is determined by several biological factors and your mere beliefs will NEVER change what you are.

Scientists disagree with you.