Christ, this mentality is along the lines of, "If I did steroids, I'd look just like Arnold." Everyone is different. That doesn't mean, everyone can get just as cut, but some people have a harder time gaining size. It means EVERYONE IS DIFFERENT. For people that don't have a hard time cutting bodyfat, they'll never understand what it's like to be 12% bodyfat and eating perfect, better than all their sub-6% friends around them, and not losing a damn thing. I'm very proud of you for being so lean, go you. Some of us aren't so lucky.
-B