What you are describing is a correct "image" of human-nature.
It also is a correct understanding of why humankind won't get its viability in-order until it's far far far too late to make any difference.
There are 1 or 2 papers, recently, on how human-nature is reactive to obvious-problems, and how that makes it impossible to prevent ClimatePunctuation, as I call it, from killing either all or nearly-all of our kind from this planet/system.
Nuance & considered-reason, both, have no place in imprinted animal-reaction, which is what is displacing considered-reason from our world, now.
"dog whistle" is just a euphamism for imprinted/programmed animal-reaction, limbic-mind's displacement for considered-reason.
Daniel Kahneman's "Thinking Fast & Slow" is the most important psychology-book in our world, right now, it is on this 2-system basis of our minds..
All the intense-but-not-actual/workable enforcing of ideology-addicts.. it'll never save us.
fundamentally, consider that addiction is a mechanism, not a problem: addiction-to-integrity is a Good Thing(tm), right?
Addiction-to-growing-up, addiction-to-wisdom, addiction-to-outgrowing-ignorance, addiction-to-being-a-proper-parent, etc..
But that is nuance.
Try telling any of the ideology-addicts whose ideology is centered on "addiction" that addiction is just an impersonal-mechanism, and it is what-the-addiction-is-TO that can be a problem .. and you'll discover how rabid/automatic/closed minds can be.
shruggeth
No matter: if life is what human-ignorance need eradicate from this world, then .. eventually .. life'll try again, elsewhere.
An eldless stream of Universes, filled with worlds, it doesn't matter if we won't earn considered-reason, does it?
It'll happen somewhere..
someday..
Statistically, it must, right?
_ /\ _