it was made as a social construct to differentiate female and male sexes, but now people are no longer being killed (as much(?)) for deviating from traditional gender/sex standards, which is a wonderful thing. there is no need to identify as male or female if you are neither, the reason so many nbs are everywhere is because now there are enough people supporting it to where they're no longer afraid to show everyone who they truly are. I'm personally a cisgender ally, but ik a couple nbs who are my friends and I'm so glad that we can be free and break the laws of gender, or my friends might not be with me.