It can call itself by whatever name it wants, but the proper pronouns for a man are he/him/his, and the proper pronouns for a woman are she/her/hers, the pronoun to be determined by the presence/absence of the Y chromosome.
So I would call HIM Chelsea.
A man can change his name, but he can’t change reality.
It’s a a psychological disorder that’s worshiped by liberals and supported by the media.
Which for the most part, anything abnormal is what the left supports.