the middle class are the people who lived in all those american suburbs built in the 50s and 60s; those small, 2 or 3 bedroom houses with drab siding or brick facades that are an overrepresentation of the american landscape and lifestyle, despite the fact you've rarely ever seen one in a TV show or film. these homes were affordable to the average worker but now aren't; those are the homes of the 90%, the actual hard-working american population--the 'middle class.'
this isn't that difficult of a concept.
the reddit forum design seems to inherently encourage nerd bullshit. tell me more about the dictionary definition of this or that.