Last week, a British employment tribunal found that Maya Forstater was discriminated against when she was fired from her job in 2019 for tweeting that men cannot become women.

Forstater’s win is a victory for free speech and biological reality. It also serves to rein in the excesses of transgender activism by restoring a sense of balance to the current debate. Transgender people deserve respect and legal protections, but trans women are not identical to women. Contrary to what activists would have you believe, many transgender women agree — biology matters, and these associated differences have important implications for women’s rights and safety.