You're right and wrong. Which isn't that surprising when talking about something as broad and complex as human society. There's no question that people can and often do band together and help each other during times of suffering. There are countless examples. It's just that not all people do. Even in the most cohesive societies helping each other out there are always corrupt and selfish individuals -- opportunists preying on the rest. They will always be there.

So when hard times come, the majority of common people work together to survive. But they do so under attack from a handful of shitty people that can only think to enrich themselves.