I can't say I've seen that. Most transgendered people I've seen discuss the topic have no problem admitting that biological sex and gender are different. They just firmly believe that gender matters more and that society should make its rules about what people can or can't do based on gender not sex.
Honestly, I think they do themselves a disservice with some of their framing. I watched this clip of Dr. Phil where a couple transpeople pulled out this chart of genders and pronouns, and they had to admit that even they didn't understand what all the pronouns meant.
Then when this well known conservative hack came on there and asked them to define a woman, they both said that a woman is defined however woman says. I basically came away from the clip believing that they are just throwing shit at a wall to see what sticks at this point.