Can we please talk about pathologizing dissent? Because it is happening now. And has happened before as a justification for industrial scale murder.
The concept involves branding or stigmatizing all dissent as mental deficiency, combined with a eugenics program which targets those viewed as disabled.
This is a topic where heavy psychological evasion was used to bury it in the public mind, with tactics like "knowing without recognizing", in part because of how horrifying it was.
This article expands on the how art was used to label people as mentally ill degenerates and subject them to the Aktion T4 eugenics campaign, which was the precursor to the "final solution".
https://www.hackingbutlegal.com/p/the-politics-of-pathology