Based on the analysis of the provided data, it can be concluded that the resilience of the phenomenon of "stupidity" is rooted in its very nature and in the ways society often responds to it.

The Entrenched Nature of Stupidity

Based on the analysis of the provided data, it can be concluded that the resilience of the phenomenon of "stupidity" is rooted in its very nature and in the ways society often responds to it. In one of the sources ( link txt), it is detailed that stupidity manifests itself through "pettiness, shortsightedness, self-confidence, pretentiousness" and exerts a devastating influence. Moreover, even showing tolerance for such traits is seen as a continuation of them. As it is stated:

"Regarding stupidity, it is indeed something unbearable: it behaves in a petty, shortsighted, self-confident, and pretentious manner; it acts harmfully, often simply devastatingly.

And can one tolerate such behavior—under the guise of misguided tolerance?

Why? For what reason? Such tolerance is nothing other than a form of stupidity. Eliminate it! Uproot it, eradicate it, trample it! And you, Professor, of course, remain silent and take the side of stupidity? Oh no, Director, that’s not the case—defending stupidity is not at all within my competence. But we, who by the very nature of our profession truly fight stupidity, know exactly how tangled this issue is. Since you classify as foolish the criminals, traitors, squanderers, frauds, communists, and other social scum who commit wicked acts against the law of human community, I, of course, will recommend taking action. Each of them requires a unique approach. However, eradicating them is no simple matter: these idiots are often very slippery fellows. But take note: it is precisely here that the real problem begins." (source: link txt)

This demonstrates that the phenomenon of "stupidity" has become deeply entrenched in the culture of society, and its eradication demands far more radical measures than mere educational and social programs. Even with corrective and rehabilitative efforts, the fundamental perceptions that give rise to stupidity remain hard to change, as they are intertwined with society’s general attitudes toward values and norms. The tendency to tolerate stupidity, often unconsciously accepted, only perpetuates its presence.

Thus, despite active efforts in the educational sphere and various social programs, the fundamental traits of human existence and the principles of social organization can preserve and even encourage manifestations of stupidity, rendering it a resilient and hard-to-eradicate problem.