Socialism

Thanks for answering.

First i wanted to adress that the title of this post is bullshit. The article is merely about psychologist telling other psychologist how they are relevant to understand radicalization.

You're right about the quote it's just explaining what left extremism is about there is a paragraph for the 3 identified category : religious, left and right.

The take home message was about the article and this ill-informed post.

Now for my opinion: I don't think you should expect anything about a discipline which classify deviance in a big red book with statistical procedure (see DSM).