Purity spiraling, in-fighting, and the desire to be "ahead of the herd" is what kills virtually every niche ideology or political/social movement. Pretty much every movement that has started or gotten popular in the past decade fell victim to it: libertarianism, the FOSS movement, GamerGate, the alt-right, the alt-lite, the dissident right, third/fourth-wave feminism, the SJW movement, etc.

Is this just some psyop to destroy any movement or is this just a part of human nature?