At least you’re using the proper term “sex”... the popular modern term is “gender” which traditionally is used to refer to a NOUN (not a person) as masculine or feminine. A latter day irritant.
When I was a kid, gender meant sex, and gay meant happy. You can’t use a rainbow as a symbol of God’s mercy anymore because they’ve perverted the meaning into an abomination. Some day far in the future, when all the liberals are burning like marshmallows in Hell, things will go back to normal.
Gender has been substituted for the perfectly grammatical and biological term, sex, because the word sex was deemed too sexy.