MacMacMac
burkey biology is sex, not gender.
That's only the modern (woke?) redefinition. Long-standing usage says otherwise.
Anyway ... the use of they/them/their when referring to a singular antecedent is entirely wrong ... regardless of your notions of sex/gender. But we don't have genderless first-person singular pronouns ... except for it/its, which are reserved for inanimate objects, not people. We even use gendered pronouns for dogs.
So do not suggest that I use it/its/they/them/their when referring to any person.