And science says..... birth chromosomes matter.

I get your point, but I doubt you actually know a person who had the undergo both those procedures.

Wrong. Metasticized Cancer sucks. Why do you feel it's important to have to doubt someone? Are you a medical expert? Sure hope you doubt Biden.

Why does everyone like talking about this so much? Are trans people taking your rights, starting wars, censoring free speech and causing inflation?

Because transactivists are insisting on grooming children.
That's way

For one, they are trying to ram their lifestyle choices down people's throats, they attack everyone who questions their agenda and this results in the irreversible, permanent mutilation of young children. Children are being taken from their parents and subjected to these procedures without parental consent. The whole transition thing is done in secret in schools and surgical centers that make a fortune off of vulnerable people- excluding the people who are raising the child. Saying a surgically altered person is something they are not is a big lie. Lies don't help anyone.