Male and Female defined by Executive Order

https://www.whitehouse.gov/presidential-actions/2025/01/defending-women-from-gender-ideology-extremism-and-restoring-biological-truth-to-the-federal-government/

(d)  “Female” means a person belonging, at conception, to the sex that produces the large reproductive cell.

(e)  “Male” means a person belonging, at conception, to the sex that produces the small reproductive cell.

Why is this so hard? A nice simple definition.