And we are not the ones that live in the future...
This two pre-bronze age tribes live in it, the future we all will experience with collapse of our natural world and our civilization.
Meanwhile, premodern societies depend on the ecosystem as a whole which tends to adapt over time; the individuals in such societies are more self sufficient in terms of ability to survive the elements.
So it’s just as likely those not dependent on modern technology will do fine against the vicissitudes of climate change as much as those who are dependent on it. At least in terms of ability to survive. At least, their expectations of survival baseline won’t change nearly as much in the face of natural disaster.