There is a third online opinion on that with a significant following: https://www.aei.org/economics/the-us-middle-class-is-disappearing-into-the-upper-middle-c

There is a third online opinion on that with a significant following: https://www.aei.org/economics/the-us-middle-class-is-disappearing-into-the-upper-middle-class-but-theres-more-to-the-story/ https://www.aei.org/economics/the-us-middle-class-is-disappe...