No matter what you do in life, somebody else will get their panties in a bunch and try to "set you straight". You don't need some Facebook nutjob's approval in order to have a fun and fulfilling life.
For that matter you don't need my approval either, but you have my approval. And I think that if a "christian" is calling you "Dishonest, narcissistic, needing therapy, fooling myself, and other ugly words", you must be doing something right!
I've found that fading and not outing myself has been ideal. I can still talk to the ones I want to, and I can ignore the ones that I don't want to talk to.