To what extent should transgendered people should have access to restrooms? To what extent should they be allowed to participate in sports? Why guess. Here are YouGov’s survey results from the UK:
2020 Attitudes About Transgendered Peoples’ Access to Restrooms, Sports Competition and More
One of the issues addressed in the survey is recognition. In my opinion, that is the key metric. We have no need to understand transgenderism; we have a need to accept it. When it becomes merely atypical, and not abnormal, we will) give it no more recognition than heterochromia (eyes of different color) or having six toes.
In 1999 a transgender MTF worked for me in a large corporation. She was a major disruption in the workplace, unwilling or unable to suffer any imperfection in anyone else, refused to comply with technically-sound computer security practices, could not be assigned to any team (none could tolerate her behavior), and the list goes on. I fired her for cause, and our HR Department went ballistic. I was ordered to reinstate her and issue an apology, because they feared a lawsuit. I refused, because that would constitute unequal treatment. Her behavior would not have been tolerated in a non-transgendered person, thus could not be tolerated in a transgendered person.