Subject: Re: Question for LGBTQ+++ advocates
you could always ask the person

Why? Shouldn't these four attributes define what they are? Or does the word gay mean straight and straight mean lesbian and it's a matter of personal choice?
And if that's true then why even have words for sexual orientation?
In this case the unknown variable was sexual orientation, but it could have equally been gender identity or gender equation. Biological sex I am still assuming is physical reality (even for hermaphrodites etc) and not subject to the person's choice. (Maybe doctor's and parents').