Replying...
Intro. You have been with Carola for several years, and Andreas has a son. You noticed early on that Andreas was different from the boys in his circle of friends and it quickly became clear that his romantic interest is more likely to be aimed at boys than girls. That's why it was not a shock for you when Andreas came out. It was a shock for his mother, she always thought that her boy was "normal". (Your objection that homosexuality would not be abnormal, it did not accept it.) But what surprised you was the development of recent years. Andreas started to grow his hair and his clothes also became feminine. He also started to be called "Drea" by the people, or he said he was "Andrea". 6 months ago he confessed to you that he would take female hormones and your wife threw him out. Your relationship has been tense since then, because you try to understand the situation, but your wife remains stubborn.

Born as a son, destined as a daughter

@Nuncio