I was reading a book on social life of the upper-middle class and new rich of the American 1920s and realized so many things we now do proudly were considered socially taboo back then. This was especially the case for clothing, makeup, women in certain public spaces, etc. What do you think will be different in the 2120s? Or maybe even the next 50 years?
What makes you think that a global crisis would reduce humanity to tribes and clans? Isn’t it more likely that desperate times result in something more like a global government and more systematic enslavement of humans? How could the owning class ever pass on the opportunity of not having to work and instead utilize their workers as efficiently as possible?
I believe that the oligarchs will try to do exactly that - I just don’t think that they’ll succeed.
And in trying and failing, they’ll so undermine society and bring about so much frustration and anger that our civilization will not survive.
A global crisis, if severe enough, would make a global government impossible to maintain. If anything, existing governments would struggle to survive.