Those individuals who adopt fill in the blank because they need an identity will be condemned to wander the sectarian and factional hall of mirrors, constantly looking for the perfect group that will give them their desperately needed sense of specialness and superiority. ... People with confused identities are attracted to totalitarian solutions.
The original article filled the blank with "Islam", but as you can see if you throw "Marxism" in there it works just as well.
(Yes, there's been a lot of Islamic talk around here recently. My current personal work has reached the point where I feel the need for a religion again, and being bored with neo-paganism I'm exploring the Sufi tradition.)