I have seen no evidence that human beings have more than two genders. I understand that there are people born with bits of each gender, and I don't care who sleeps with who. But when people start with her, she, and it, I think they're more mentally ill than anything else.

As for language changing meaning, yes, it does, but not overnight.

https://medium.com/born-to-write/yes-language-changes-but-not-every-24-hours-1c6647f3b9a