It’s actually true that neocon bashing is a bit on the tiresome side. That said, I think it really has to be understood as a vital social necessity. Adherents of a deranged and sociopoathic “neocon” conception of America’s role in the world continue to be tremendously influential in our society.
This is a dangerous situation. In the United States, the opposition party is always one ill-timed recession or political scandal from taking power. So a set of ideas that dominates one such party is something you need to keep a watchful eye on, no matter how marginalized that party may seem at any particular moment.