What does it mean to 'deny [insert person here]'s identity? Pretty sure Rachel Dolezal's black identity was roundly denied. Here in Canada, the arts community is on a bender to challenge the identity of anyone who claims to be indigenous without a solid pedigree. Most 'identities' have clear definitions that establish a barrier to entry for those who don't meet the threshold. Why should 'gender' be any different? There's no double standard.

Besides, de Wahl is supportive of people's right to medically transition, or present themselves however they please. She (like JK Rowling, and Maya Forstater), is merely pointing out that 'identity' doesn't alter biological reality and that sex-based rights matter.