You should probably know that historically societies collapsing has typically resulted in improved health of the lower classes as judged by skeletons in the archeological record.

We should not really understand societies collapsing as a violent or spectacular thing. It's usually just growth slowing, people move away, the ability of states to enforce taxes and provide services weakens and people work out their own stuff.

I'm not saying society is collapsing, just that if it does it'll probably look more like declining birthrates and movement away from cities and advanced manufacturing to more agrarian lifestyle. Also that for the poor and downtrodden this will probably, on average, be an improvement.