Can you give a coherent definition of middle class? I’-e never come across one that makes sense.
It’s someone for whom money isn’t a daily concern, but is still a resource that can run out. They might have to plan for their yearly vacation, or have to discuss the next car purchase, but wouldn’t have a problem buying things or eating out. If you’re looking for a more specific definition of “makes below $$$” then you’re not going to get it, because that’s not how any of this works.
Since it’s highly incentivised by capitalism to invest your capital, most “upper middle class” people don’t actually have all that money sitting in a bank somewhere. It’s usually invested somewhere which makes them (partial) rent-seekers and extractors of other people’s surplus value.
This is why you people will never actually get anything useful accomplished in society. You’re so intent on fighting against human nature, and playing victim of “exploited surplus labor value” that you simply can’t understand that there IS value in capital investment risk. It’s simply not the case that 1 unit of labor = 1 unit of money.