Everyone like to take look at society from their individual perspective, which is a mistake !  
Why ? Because then everyone think "middle class" : there is always someone "below" you and someone "up".   
If you dig this question enough, and think about the relationships between the classes, there no middle class.

I would say that most of us are from the popular classes, which all share the same general social situation :  
\- Economically, in perpetual subjugation  
\- Culturally, distant from the bourgeoisie's culture

Note the plural form of "popular classes".