Well quite.
I have a friend who says she is a witch, and will do spells and incantations.
I do not believe in magic. I acknowledge that she calls herself a witch and respect that.
However, when explaining this to my young children (who got scared), people are not really witches, they just think they are. They can't really do magic, they just think they can.
People are transgender. A transwomen may believe she has changed sex and is now a women....