I'm in agreement that self-fulling dynamics occur regularly over longer time horizons, I viewed what you said as pragmatism rather than cynicism.

As for who cares to rationally think and act when they can easily observe and react?

The problem with the latter is that its a false choice. The latter simply isn't possible in any effective sense. Certain systems and dynamics become a hysteresis problem, where the indicator is lagging ahead of when it actually happens; by the time you see the indicator it can be perceived, but ultimately impossible to react to in time.

There are also simultaneous issues with rational thought being deprived broadly through induction of psychological stress using sophisticated mental coercion and torture (which isn't physical). Rational thought is the first thing to vanish, and these methods act like HIV does in cellular systems (i.e. destroying the memory of the immune system making it unable to act, instead it destroys perception blinding people).

For some reason these things remind me of the Tower of Babel story in the book of genesis. It makes god out to be the bad guy, when it seems far more likely that the dynamics became destructive. All of Humanity has psychological blindspots that can be used to manipulate them in collective and through unity. Pride often lends itself to delusion, and blindness. Destruction usually follows, and confusion occurs naturally when delusion breaks towards a witnessed reality (as survivors, where others kept dying).

It seems like the translation is off, where instead of god, they meant the inescapable forces of reality. Albeit this is getting a bit into the weeds, its an interesting perspective.

Getting back to things, the major difference today when comparing to history with regards to revolution, we are in extreme ecological overshoot (globally).

Breakdown of order translates to famine so severe that half globally die from starvation. To make matters worse, nearly every economic system on the planet is controlled indirectly by one nation through money printing, and those distortions created are chaotic (fundamentally it shares many characteristics as that of a n-body immeasurable astrophysics system that has limited visibility).

When these things happened in the past, they were largely in isolation, and outside the geographical affected areas, assistance could be leveraged for survival. This is no longer the case now. If these things collapses, it all happens to everyone at the same time. Not enough resources exist to resolve the failure, and there are no tools that would allow correcting the situation after the dynamics have passed a point of no return.

Thinking about these things rationally, preparing while we can (before it happens), is the only tool that might allow survival long term for a few. Its important that survivors know what happened and how it happened, or it will happen again given sufficient time, and that requires a foundation.
Needless to say, we have many dark times ahead.

A line appears, the order wanes, the empire falls, and chaos reigns.

I do not envy those who would have to somehow live through chaos, where nuclear weapons might be used by the delusional or insane.