Trans women are women. Fact. Science backed fact.
Backed by what science? For anything to be backed by science you need clear definitions, categories and measurable characteristics.
So,
Definition of woman
Categories of woman and non woman: who is included and why
Characteristics of woman: how do we verify who is a woman and who is not
How to measure characteristics: where are the boundaries
How that then relates to sport, as this is the discussion here
Remember, sports is played with bodies, not feelings, minds or social conventions. So you need to put in definitions, categories and characteristics based on human bodies.
Curious to the answer to this