... and one should assume that you would be equally happy living in an heavily abusive relationship, as long as the other(s) don't damage you too much to be able to eat and eliminate.
... and one should assume that those cross-dressers and transsexuals who committed suicide did so because.... ummm? urrr, because they found themselves choking to death on some food and figured that slashing their wrists or hanging themselves would be a faster way to get it over with? If the theory is that it's all about the most basic biological necessities (food, breathing, excreting, and a place in a livable temperature range), then the theory has to suppose that the suicides are seriously deficient in one of those basic necessities, and that their emotions and interactions with other people had nothing to do with their decision to end their life.
If you can explain the high suicide rate in pre-op transsexuals in terms of food/ air/ a physically survivable environment, then I might be willing to give more serious consideration to the possibility that since cross-dressing isn't a "biological necessity", that anyone can stop.