I definitely agree that tying trans acceptance to willingness to embrace a certain definition of woman is unwise. I'm quite frustrated about that approach personally. Many people are willing to accept and accomodate trans people, and we should be focusing on that instead, rather than alienating people.
Also, as a free speech absolutist, I believe we should be removing taboos, not adding them. Making more and more things controversial to say, forcing everyone to monitor their own speech all the time, is regressive.