I don't hold with narratives about political "pendulum swings"- a pendulum swing is a phenomenon of physics consisting of a path that's preordained to reach equidistant extremes.
There's no analogy to be had there. The popularity of the metaphor mystifies me: the only thing that it has going for it is that it's simple and easily visualized- and hence serves the dubious purpose of providing an easy answer in lieu of more well-considered thought. As an allegory applied to human affairs, the "pendulum swing" is both a terrible theoretical model and one that's demonstrably falsifiable in practice. The workings of societies and polities are not captive to that sort of overarching physical determinism, the way that the motion of a pendulum is ordained by the workings of gravity. Humans are capable of thinking outside of those constraints. The world would not end if the "pendulum model of ideological shift" was to be discarded.
I just want sanity restored. Temperance. Elementary fairness, not arcane servo mechanisms and futile exercises at river-pushing justified only by rhetorical obfuscation and grandiloquence. Worthy goals are not justified by deceptive means, no matter how nobly stated the intentions.