Yep, late-stage capitalism plays a huge roll here. The competitive rush to stay afloat makes every person a potential competitor and crappy, low-paying jobs take up lots of time that could be spent doing more useful and healthier stuff. Ubiquitous internet use and the way Facebook, Google et al. use their platforms to manipulate us psychologically also serve to isolate and alienate people from one other. Our society is in serious trouble on multiple levels as demonstrated by, among other factors, the rise of dysfunctional politics and citizens abandoning reason and logic as decision making and reality evaluating tools. It will be a tough slog recovering from this sad state of affairs.