Hmm... not quite sure your evil ENFP's are quite on base. I agree with the thought of them going crazy about an ideal, not in an organized way... but that wouldn't be a huge problem for very long, because they'd get distracted by something interesting/sparkly. ENFP's aren't good with following through. Maybe an ENFP would by more like England during the war between Prussia and Austria? Cause a whole bunch of trouble for emotional reasons and then skidaddle when they find something better to do? ENFP's usually eventually listen to reason, just it tends to be after they destroy everything in a 10 mile radius.