For one, the man who thought is complaining about not being called hot by a girl all the time is probably too insecure himself.
And not every girl is going to walk up to a guy and just be like "HEY! YOU'RE SMOKING HOT AND I WANNA GET WITH THAT!"
Also, some girls might think the guy it hot, but when he calls a girl 'insecure' then he probably has a very selfish personality that nobody likes. Why would you compliment you... i mean, a guy when he's being a jerk?
Culturally, men tend to fall into two categories. The guy who acts the confident macho, & the guy who is a romantic poet. The "meat market" mentality of our extreme visual culture hasn't quite exaggerated the male appearance like it has the female, but we're getting there. A man w/a double chin & beer gut will comment on the physical features of every woman. Women are still caught in the culture of the impossible skinny & technologically enhanced video appearance that it is nearly impossible for a woman to comment on a man's appearance w/out anticipating backlash.