The economy collapsed during the Great Recession and middle to lower class suffered the most. I think there might be a big movement to push against another bank bailout this time around...
The middle and lower class benefited greatly from the 1920s run-up. They benefited far less from the last decade of economic growth that went pretty much wholly to asset owners and they don't own many assets.
They may very well decide to let it crash this time.
They may very well decide to let it crash this time.