We probably have very different definitions of class that's causing this confusion. The definition of class I'm using is laid across a spectrum from those who s

We probably have very different definitions of class that's causing this confusion. The definition of class I'm using is laid across a spectrum from those who sell their labor on one end to those who make money from the ownership of property on the other. The reason I use this definition is because the economic relations are reflected in social relations. The social relations one has when they primarily live off the earnings of property are qualitatively different from those who don't - this difference forms the basis of class. Know that this isn't an idiosyncratic definition - the cradle it was born in was the same cradle that bore sociology itself.