Why do so many men think they’re irresistible to all women?

(Besides the handsome ones, that have a reason to think so, as many women teach them by throwing themselves at them that they are); I’m talking about plain and unattractive men, who don’t attract women easily. You’ll be nice to them and show care for them and they worry because their attractive mates are having this problem, that they will, too and that it’s necessary to warn every nice female friend that they’re taken?

Why do so many men think they’re irresistible to all women?
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