Depends on the area. The national median doesn't really give you insight into whether someone is middle class or not.
I'd also point out it's 15% higher than the median. How small do you feel the middle class is? You mentioned "lower middle class"; I only see them mention "middle class".
But even for the lower middle class, it rather depends on how you choose to count it, no? I've seen some economists define middle class as the middle 60%. Given that range (~$46k - $140k), they're in the lower end, if you want to hold them to that statement (that they never made).
I'd also point out it's 15% higher than the median. How small do you feel the middle class is? You mentioned "lower middle class"; I only see them mention "middle class".
But even for the lower middle class, it rather depends on how you choose to count it, no? I've seen some economists define middle class as the middle 60%. Given that range (~$46k - $140k), they're in the lower end, if you want to hold them to that statement (that they never made).