"The elderly are useless eaters." - Henry Kissinger. quoted in the book The Final Days.

Necropollitics revolves around exactly who in any society is sentenced to civil or social death. These are those who are denied the egalitarian benefits of democracy, those deemed unworthy of citizenship, the outcast, & can only expect certain premature death.

While Achille Mbembe identifies necropolitics as a part of the sovereignty specifically exercised by imperial powers over their colonies, it is easy to see it exercised domestically as well.

From the POV of psychology, this is part of the 'otherness' inherent to human nature, dysfunctional yet normal & therefore not up for change. This is what people do when stressed out over declining resources & destruction of human habitat.

Perhaps we could reevaluate the definition of civilization & recognize it as evolving from the armed camps that gave us our cities. Certainly its etymology suggests that. Then you will see that necropolitics has been embedded in civilization since its beginnings.