This analysis is flawed and basically follows Democratic talking points.

The Middle Class is real. It is defined as having certain wants and needs:

1. They pass intergenerational wealth on to their children usually through real estate, 2. They pay for their children's education, usually higher education 3. They pay for their healthcare, 4. They own assets that appreciate in value: stocks, real estate, small businesses... 5. They accumulate enough wealth to retire. Etc...

The working class typically did not have these needs and just worked for an hourly wage.

The neoliberalism of the Democratic party since Clinton has basically abandoned the Middle Class passing legislation attacking these core needs. As the wage gap increased the Democratic party stopped using the term 'Middle Class' and started an active campaign against this language.

Can the Middle Class buy housing? Housing has become unaffordable. Can Middle Class pass intergenerational wealth on to their children? Not so much anymore. Can Middle Class pay for their children's college? Not with the increasing cost of education and the predatory lending of government backed loans. Can the Middle Class pay for their healthcare? Not with the increasing cost of healthcare. Can the Middle Class afford to retire? Not when the Democrats eliminated pensions and replaced them with 401 K plans.

Not letting the Republicans off the hook, but the Democrats were the party of the the Middle Class. Now, their talking points are not to mention the Middle Class or say it was just a myth. One must see there is a concerted effort to monitize the Middle Class and take their wealth.