Hunter gatherers didn't necessarily suffer that much. Sure, they faced a lot of environmental challenges like bugs, a lack of air conditioning, hunger, and serious diseases like malaria and smallpox, but they arguably had much easier social customs than we do now.

There were no clothes, no laws, no social signaling for the most part. If you didn't like your tribe, I'm sure you were free to run away and eat berries in the forest and try to figure it out yourself.

These days being homeless is illegal and they face a lot of harassment. You are forced to conform and commute to a job to pay for a bed to sleep in.