Because they go against the narrative the proponents (irony...) of cancel culture want to impose. Why doesn't anyone ask why 13yo girls are not interested in becoming loggers, or police or trash collectors? Why are most 13yo boys not interested in becoming ballerinas?

Sure the proponents of cancel culture try to pretend there is no such thing as human biologically encoded biases: everyone is a supposed blank slate. That's why it seems a bit stupid for people who don't share their views, why try to fix human nature (as if it were possible) when you can just live with it?