They cry that the artists portray an "unrealistic body type"  These people are SUPERHEROES.  They are capable of physical feats that the average person can only dream about.  It's barely even believable that even the bodies depicted are capable of doing what they do.  Having a fatty do what Batman does every day would not be "realistic", it would be laughably stupid as even super-ripped Batman is still pushing the limits of what the human body can do.