Agreed, I've had calling women "babe" or "hun" backfire on me in certain situations. (This works best if she is already showing signs she is interested in you).
Agreed, NPD is a life long pattern of destructive behaviors (to the point that they can't have functional relationships).
It's much more than just taking selfies, mirror gazing, or talking about your accomplishments.
Women tend to be the same globally. You go to a developing country to find a mate, she will mainly be interested in money. A beta won't suddenly become an alpha chad by moving to poorer country.