It's not really cynicism.
It's just that people today only care about the next 20 or 30 years. They don't really care if, over the course of the next 200 years, two nations can rebuild from annihilating each other in a nuclear exchange. The nuclear exchange is a lot more pressing concern for them.
Maybe this was your intention or maybe not, but this is kinda what I'm talking about. It presupposes that there will be nuclear exchanges and annihilation in the first place, because, well, why wouldn't there be? Life is shit, tensions are high, and that's the grim dark end we all see coming anyway?
Isn't that the human condition? Historically, it was no doubt an evolutionary advantage to always think that a lion is about to pounce, so to speak. That doesn't just go away. The instincts still need something to work with even after all the real threats are gone.
The cynicism comes from the fact that many people (including me) have decided to check out from what is going on in the world and instead focus on what we can control in our daily lives.
It also comes from the fact that in many countries the social contract is broken.
You are still expected to pay your taxes but the services provided are increasingly of bad quality such as schools,hospitals, judicial system and so on.
So much so in fact that it seems to me that this relationship that the people have with the state is becoming more and more one sided. Like in an abusive relationship of some sort.
Look at the number of people who don't bother to vote anymore because at the end of the day it does not make much difference to their lives.
There is profound sense of injustice in the world at the moment but it is being swept under the carpet.
There's a pervasive sense in online discussions these days that if it's cynical, dark or depressing, it has to be the truth. It's like Occam's razor for today's modern doomer: the bleakest explanation must be the correct one. And I'm not saying that things are easy or that democracy is guaranteed, but I am saying that pessimism isn't inherently more realistic than optimism.
Cynicism sells in the 21st century.