From what I've seen fats have a 5th grade understanding of anything they talk about.  When it comes to fat and muscle all they see is muscle weighs more and stop there because they suddenly realize that they can form something resembling an argument out of that.  But they never look even one sentence further that would tell them that fat's horrible for them and muscle is amazing for them.    And then they see people getting attention and accolades for doing well in school or sports or anything and they feel like they deserve them too because they put forth some semblance of effort.  And they don't seem to realize how much effort normal people put into actually achieving anything because all they see is the result and assume that everything comes naturally to everyone except for them.