By that logic I think you would want to squeeze the top right? I mean if you remove the middle then people will have to fill the middle before the even attempting at the top (and the top is saturated under current conditions) ;)
Beyond such myopic reasoning I think there is a great deal of economic theory around the collective economic benefits of having a strong middle class. You could try to argue against this but I think its at least a popular mainstream theory.
It is a popular mainstream theory. I'm not optimistic that this can continue. With technological innovations, I am convinced that we will end up in a can and cannot society where some people will be able to keep up and some won't.
Well if we all go around promoting the destruction of the middle class im confident will be able to create that future that you are unoptimistic about ;)
How it will turn out is kinda unknown. 100 years ago many people couldnt read and worked on farms. We past the first transition quite well, how will we fair in the next transition is indeterminate. I do know that this is the one area where what people THINK actually could have an effect on the outcome. (unlike most science)