> The current educational and political system is organized toward exclusively presenting the view that gender is a cultural construct and there are no differences between men and women other than plumbing.

Gender is, by current academic definition, a cultural construct, an identity. Sex, i.e. "plumbing", is the definition of the difference between biological men and women. People with trans operations do not deny their chromosomes, and I'm sure they'd be the first to assure you about the hormonal differences between the sexes.

The problem people are grappling with is ascribing identity assumptions based on sex. You haven't listened carefully enough to understand the difference between gender, sex, identity, etc.