I've come to view excess body fat as a kind of female secondary sex characteristic these days that certainly doesn't do much to enhance the manliness of those males in possession of it. I encounter a lot of overweight or obese males who seem to view their girth as being mostly muscle, but it's solely the result of sweets, sweetened beverages, breads and other foods that seem to be more in what I at least associate with the female realm. You can't really get fat from gnawing on carcasses and other manly eating practices.
Furthermore, the excess fat enhances the extent to which testosterone is aromatized into estrogen, making these men more feminine from an endocrine standpoint.
Maybe this an angle that could be used to point the uninitiated in the right direction....

