Lots of NTs are this way.
Meh. Congrats, you've realized that the majority of the "emotions" people feel are just for show and that even the real ones are just chemical reactions to a stimulus they've been somewhat conditioned to respond to, anyway.
Some days I feel like none of my emotions are real, Shit, sometimes it's actually true and I have been called cold-hearted.
But, give it time. You will have some kind of raw emotional reaction to something or react unexpectedly in a way that feels very real to you. Or fall in love.
It happens, we just see the exaggerated emotions in others and don't identify with that. I think at the core most people are like us and are just more complicated.
I didn't read all of your post, I hope there's not something crazy in there that I missed.