The ideology that it is possible for a human male to transition to a human female (or the inverse).
Not everyone believes in this and that is ok. I choose to respect the wishes of adults around me for social cohesion. I draw the line when we’re talking about children.
Even worse, most people don't believe in it, the ones that do are typically just following a popular fad. Which is a truly awful reason to permanently disfigure the children and adults who have been caught up in this nonsense.
This is just a nonsense sentence.