The vegetarian analogy was about deceiving someone into doing something by not telling them that it was not as they thought, and then excusing the deceit by pointing out that they had been at liberty to refuse it.
No more, no less. An ethical issue, not a life or death one, and not a biological one. Ethical, and based around the deceit involved in your saying that people can refuse to be examined by anyone.
Analogies do not have to hold true in every detail - they are made to get across a point of principle, not to make exact cross-disciplinary comparisons.
Others on this thread seem to have understood what I was getting at.
Also, I think I can speak for others when I saw again that we know that transpeople have suffered. Of course we do. We are not suggesting that this is ok, or that they should not be protected in law. All we are saying is that women have a right to safe spaces, and anything that threatens this should be resisted.
I really don't know why you can't see that this is what we are getting at, even if you don't share the view.