Yeah I worded that poorly. I meant mistakes specifically referring to sex. Obviously people are born with disabilities and stuff like you said and that's my point: if someone is born with a penis and a vagina, that is a deformity to me. It's not suddenly proof that "Hey, sex isn't binary!!". It's the exception to the rule, not the rule.
As I said to @aabattery, who like filmlover, is being a heck of a good sport about all this, maybe one day the concept will be very real to people like me. But at this point, for me personally, it isn't. In the meantime, I wish no ill will on any transgender person whatsoever and only the best, most comfortable life possible. That's the best I can do.