Fortunately it doesn't really matter if you don't understand the motivations of others. Your lack of understanding - and more, your lack of a desire to understand - doesn't invalidate the life of the people whom you refuse to understand - not even in the slightest.
As dear old Willy said: "There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy..."
Hatred of something doesn't preclude one from continuing to 'try and make do' with what one has. I hate my crappy, beaten up car, but I make do with it because it is the only car I have, and I can't afford to buy a new one. Sometimes I even learn to like my junker of a car - it's ugly, but it's MINE - but deep inside I know I really can't stand that car and would exchange it in a heartbeat if I had the right resources.
Late transitioners make do with the male body they have for a multitude of reasons, mainly due to fear and lack of information. It wasn't until the past ten years, with the explosion of the internet, that many of us have come to the realization that we can indeed transition, and that there are many others out there like us. I sincerely believe that if you had been born just fifteen years earlier, you wouldn't be so glib.
Information gives you the power to make informed decisions. When I was a teen in the nineties, the only information I had about transsexualism was gleaned from various 20/20 shows, Jerry Springer, and Silence of the Lambs. Needless to say, with those kinds of influences, I though I was an absolute freak. Teenagers today have all the information in the world available to them at the click of a mouse, and because this is all they have never known, many take it for granted. The ability to access information on demand is so very powerful. Late transitioners never had that power, until recently.
I could go on, but I'd end up turning this into some kind of academic sociological treatise (indeed, it would make an interesting topic for one).
