I organised a women's self-defence event a few years ago. On the day of the event several young women of university age attended. They all had slight/slim builds (this makes sense as these women are likely to feel even more vulnerable to violence from larger males and so would seek self defence training).
Two transwomen also attended, wearing very inappropriate clothing for a sports-type event (skirt, dress, dolly/ballerina type flat shoes). They both had a large build and were in their 30s. One of the transwomen had his wig in his hand, exposing his very obvious male-pattern baldness.
I spoke to the other organiser and we agreed that we were unfortunately not in a position to turn the transwomen away as the venue was extremely 'woke'. We also felt that risking the whole event being cancelled would deprive the female attendees of the chance to learn some self-defence skills and so proceeded with the event with the transwomen participating.
When attendees were asked to pair up, the two transwomen (who attended together) sought to pair up with other female attendees despite the very obvious massive disparity in height and weight. I stepped in to put the group into pairs with individuals of a similar height and weight in order to prevent the transwomen injuring female partners.
The instructor spent a few minutes talking about striking (punching) which the pairs then practiced with each other by holding pads. The instructor moved on, saying that due to anatomical sex difference, punching is rarely an effective self-defence technique for women. Despite moving on to practicing other techniques which are more effective for females, the two transwomen continued to practice throwing punches, even grunting whilst doing so.
Despite myself trying to manage the event tactfully, the presence of males at a women's self-defence event (which was so specifically aimed at females being able to use techniques which would offset the size, strength and weight of a male attacker) was very uncomfortable, posed a range of practical issues, and was certainly an elephant in the room.
As expected, none of the young women passed comment on their presence but dutifully got on with it... as women are conditioned to do!