Yeah i see no failure here either. Nothing against men at all, i love them big time, but they do not own the pinnacle spot of human success. Being trans is hard but most of it in my opinion is hardship caused by societies issues not by our desire to express our true gender.
Pain for your spouse is real but even a percentage of that is based on traditional views that are just not true and reflective of what gender is and how humans operate within the range of that.
You know why more men don't express more femininity? ( and no doubt transgender women do not come out). Its obvious of course but it helped me to think it all out and spell it out. They are afraid of being ridiculed, they are afraid of being bullied, there is fear of being beat up, there is a fear of love rejection, economic loss, the list is long. This is society's issue not ours. We are on the high moral ground here.
We do fully make it to the other team. Totally 100% because that is what we choose for ourselves.
I'm so sorry the toll has hit you. You are definitely not alone and so many of us have shared those low points. There is a future out there though as your authentic self with healed family relationships (although maybe not a marriage to the same person), new friends, and lots of community support.