I'm going to assume that it was written by a mtf trans activist, as it contains every fantasy they have:

• The mtf trans guy not only passed as being a girl, they were the most beautiful one the made up character had ever seen.
• Everyone sides with them, and their righteous cause, except the evil "tradcon"/fasCISt sister.
• The made up hero character tells off that evil sister, and has that huge gotcha moment.
• In the end, even that evil ant-trans sister is forced to bend the knee, and prostrate themselves before the hero and his trans "girlfriend".

It's a complete mtf guy's power fantasy.