"One of the most widespread manifestations of the craziness of our world is leftism [...] When we speak of leftists in this article we have in mind mainly socialists, collectivists, “politically correct” types, feminists, gay and disability activists, animal rights activists and the like [...] Thus, what we mean by “leftism” will emerge more clearly in the course of our discussion of leftist psychology. (Also, see paragraphs 227-230.)
[...] By “feelings of inferiority” we mean not only inferiority feelings in the strict sense but a whole spectrum of related traits; low self-esteem, feelings of powerlessness, depressive tendencies, defeatism, guilt, self- hatred, etc. We argue that modern leftists tend to have some such feelings (possibly more or less repressed) and that these feelings are decisive in determining the direction of modern leftism."
You can get stuff of this quality by the shovelful from your typical bad subreddit, although usually not by one person all at once.