[rsynnott]

From your article:

> Hartzler’s tweet, posted in mid-February, said: “Women’s sports are for women, not men pretending to be women,” _and included her TV ad targeting transgender people in sports and particularly University of Pennsylvania swimmer Lia Thomas._

Emphasis mine.

[nailer]

That’s a fairly mainstream view, and the idea that gender is performance is popular in gender-theory too.