Frankly, the historical record is not encouraging. Usually, when this topic comes up people chime in with easy takeaways like "people have always complained about this, and it rarely amounted to anything", "look at this thing that happened recently that's never happened before. It's proof that we're doing better than any other civilization ever has", or "things have not been going according to my value system, therefore doom is approaching!"
It's possible to cite example-after-example of these phrases coming up when the conversation happens in the historical record. And yet. And yet at times civilizations do die, and there was plenty of warning while it was happening. The problem is that denial and complaceny is tough to fight. When the Emperors took over Rome, it kept the Senate around. They gradually stopped having power, but by keeping them around, it was possible for the illusion of things staying the same to remain. People, with the very smallest prodding, are more than happy to believe that everything is as good as it used to be, plus there's all this new cool stuff we've never seen before!
Hell, ask a few people when the Western Roman Empire ended. Good luck with that. There are folks who will tell you it never did end. If you're that far in denial, how could you ever reason from your current historical position to the long run?
Many times I think conversations like this are much more interesting by the types of responses you get than the actual merits of the case presented.
If our civilization is entering the great 1984/Brave New World Fizzle, I can tell you with certainty that there will be fierce denial that such a thing is occurring. Just like always.