There is a linguistic problem here - extending the term 'middle class' to hide prevailing poverty in the US. You are not middle class if: - you will lose home, car if you are out of job for 6-10 months; - you don't take 30 days vacation a year; - you cannot afford health services without going to debt; - you cannot send your kids to university; - your diet is mostly junk food because you can't afford fresh stuff. If…
by your measure most people in the USA are poor I would guess about 80%+
“The shrinking middle class” is a phrase that is part of common discourse here for a reason - I wouldn’t be surprised if 80% of Americans fit the parent comment’s definition.