None of that is going to meaningfully impact a typically mobile, non-property owning, ‘wanders to find a job’ 20 something. If anything it opens up new opportunities for them in the chaos.

What percentage of the population of 20 somethings fall into the category of "mobile, non-property owning, wanders to find a job"? 1-5%? And you don't think that peripatetic workers will have to deal with the political and societal implications of climate change? What will the impacts be when California and Arizona decide between allocating water for urban areas or agriculture? What happens when the Columbia Plateau is too hot for sustained crop yields? Those workers can't just travel somewhere entirely removed from those realities.

Even ignoring the absurd reduction to a small proportion of 20 somethings, the original comment was about 20 somethings in general, not just a hypothetocal mobile workforce. The majority of 20 somethings will not be able to load up their $40k sprinter van and head for greener pastures.

We’re in a thread talking about college students, of which almost all of which are moving to go to these schools. It’s that percentage. And a whole lot more than 5% of American 20 somethings move for jobs or school away from home during this time.

It’s literally the most flexible and already mobile portion of the population, and the segment most trying to establish itself (while having some useful skills). They are the ones who are most capable and who will benefit the most from disruption.

It’s the folks too young to have useful (job) skills or capital, or who are already established in a place, or who are physically frail/getting more so, that will be the most put out and hurt by these changes.

And the human race will survive, as terrible as it will be. Compared to the world wars, the expected impacts are likely to be relatively mild - albeit more widely spread.