A chess grandmaster will never be as confident as an average male porn star when it comes to communicating with women. Guys who are confident in interacting with women usually have grown up experiencing positive interaction because of their good looks. Confidence is just a result of positive validation. ofcourse a short, ugly guys don't have as much confidence as tall guys, even when they try it's arrogance and dunning-kruger effect, as it'll never be genuine confidence. Rare vocal women aren't out there voicing their lust for shortness in males. Suggesting a guy who's physically lacking to be confident to escape his loneliness is pretty dumb. So the girls claiming to be attracted to confident guys don't have self-awareness and are just attracted to tall good-looking guys.