More like a bin than heuristics, and just attacking/harming (particularly a mutually understood schelling point for attacking, with partial success being more common and more complicated due to the people adversarially aiming for that) rather than dehumanizing which is a loaded term.

My apologies, this post was pointing/grasping in a general direction and I didn't put much trouble into editing it, there was a typo at the beginning where I seem to have used the wrong word to refer to the slot concept. I just fixed it:

Humans seem to have something like an "acceptable target slot" or slots.

Acquiring control over this conceptslot, by any means, gives a person or group incredible leeway to steer individuals, societies, and cultures.

Did that help?

Humans seem to have something like an "acceptable target slot" or slots.

Acquiring control over this concept, by any means, gives a person or group incredible leeway to steer individuals, societies, and cultures. These capabilities are sufficiently flexible and powerful that the importance of immunity has often already been built up, especially because historical record overuse is prevalent; this means that methods of taking control include expensive strategies or strategies that are sufficiently complicated as to be hard to track, like changing the behavior of a targeted individual or demographic or type-of-person in order to more easily depict them as acceptable targets, noticing and selecting the best option for acceptable targets, and/or cleverly chaining acceptable targethood from one established type-of-person to another by drawing attention to similarities to similarities that were actually carefully selected for this (or even deliberately induced in one or both of them).

9/11 and Gaza are obvious potential-examples, and most wars in the last century feature this to some extent, but acceptable-target-slot-exploitation is much broader than that; on a more local scale, most interpersonal conflict involves DARVO to some extent, especially when the human brain's ended up pretty wired to lean heavily into that without consciously noticing.

A solution is to take an agent perspective, and pay closer attention (specifically more than the amount that's expected or default) any time a person or institution uses reasoning to justify harming or coercing other people or institutions, and to assume that such situations might have been structured to be cognitively difficult to navigate and should generally be avoided or mitigated if possible. If anyone says that some kind of harm is inevitable, notice if someone is being rewarded for gaining access to the slot; many things that seem inevitable are actually a skill issue and only persist because insufficient optimization power has been pointed at them; the human race is currently pushing the frontier for creating non-toxic spaces which are robust to both internal and external factors and actors. 

Base rates of harmful tendencies are high among humans (e.g. easily noticing or justifying opportunities to weaken or harm others, or the mind coming alive while doing so), but higher base rates (of any dynamic, not just things that impact various people's acceptable target slots) also increase the proportion of profoundly strategic people on earth who find that dynamic cognitively available and hold it as a gear in their models and plots.

In the ancestral environment, allies and non-enemies who visibly told better lies probably offered more fitness than allies and non-enemies who visibly made better tools, let alone invented better tools (which probably happened once in 10-1000 generations or something). In this case, "identifiably" can only happen, and become a Schelling point that increases fitness of the deciever and the identifier, if revealed frequently enough, either via bragging drive, tribal reputation/rumors, or identifiable to the people in the tribe unusually good at sensing deception.

What ratio of genetic vs memetic (e.g. the line "he's a bastard, but he's our bastard") were you thinking of?

You don't use eloquence for that. Eloquence is more for eg waking someone up and making it easier for them to learn and remember ideas that you think they'll be glad to have learned and remembered.

If you want to express how important you think something is, you can make a public prediction that it's important and explain why you made that prediction, and people who know things you don't can put your arguments into the context of their own knowledge and make their own predictions.

I might be wrong, but the phrase "conspiracy theory" seems to be a lot more meaningful to you than it is to me. I recommend maybe reading Cached Thoughts. 

A "conspiracy" is something people do when they want something big, because multiple people are necessary to do big things, and stealth is necessary to prevent randos from interfering.

A "theory" is a hypothesis, an abstraction that cannot be avoided by anyone other than people rigidly committed to only thinking about things that they are nearly 100% certain is true. If you want to do thinking when it's hard instead of just when it's easy and anyone can do it, then you need theories.

A "conspiracy theory" is a label for a theory that makes most people believe there is a social consensus against that theory, and makes incompetent internet users take it up as a cause (as a search for truth which is hopeless for them in particular as they are not competitive in the truthfindng market) and make it further associated with internet degeneracy.

NEVER WRITE ON THE CLIPBOARD WHILE THEY ARE TALKING.

If you're interested in how writing on a clipboard affects the data, sure, that's actually a pretty interesting experimental treatment. It should not be considered the control.

Also, the dynamics you described with the protests is conjunctive. These aren't just points of failure, they're an attack surface, because any political system has many moving parts, and a large proportion of the moving parts are diverse optimizers.

"power fantasies" are actually a pretty mundane phenomenon given how human genetic diversity shook out; most people intuitively gravitate towards anyone who looks and acts like a tribal chief, or towards the possibility that you yourself or someone you meet could become (or already be) a tribal chief, via constructing some abstract route that requires forging a novel path instead of following other people's.

Also a mundane outcome of human genetic diversity is how division of labor shakes out; people noticing they were born with savant-level skills and that they can sink thousands of hours into skills like musical instruments, programming, data science, sleight of hand party tricks, social/organizational modelling, painting, or psychological manipulation. I expect the pool to be much larger for power-seeking-adjacent skills than art, and that some proportion of that larger pool of people managed to get their skills's mental muscle memory sufficiently intensely honed that everyone should feel uncomfortable sharing a planet with them.

How to build a lie detector app/program to release to the public (preferably packaged with advice/ideas on ways to use and strategies for marketing the app, e.g. packaging it with an animal body-language to english translator).

Gwern gave a list in his Nootropics megapost.