A lot of critics of the more vocal "New Atheists" try to in cheap debating points by poisoning the well with the label "atheist fundamentalists". The strategy here isn't too sophisticated: imply that these atheists are just as closed-minded as their opponents. The problem is the two aren't remotely similar. Oh sure, there are stupid atheists, ignorant atheists, loud atheists, arrogant strident atheists and even atheists that are wrong about the big questions. But none of this supplies coherence to the term "fundamentalist atheists". It's an oxymoron. We aren't much fond of authoritarianism, tradition, dogma, or of course faith. That's a big part of what makes us atheists in the first place. We don't herd well. We don't pledge our devotion to any particular beliefs, or hold much of anything in stone. Ask three atheists for their opinions on gods and religion and you'll get four opinions. Ask them again in six months and you'll four slightly different opinions from what you got before. There's no fundamentalism in there.
So you critics of the New Atheists, dispense with the intellectual dishonesty and these erroneous terms like "fundamentalist atheist". It only reveals your gross ignorance of how atheists think, or your dishonesty in dealing with it.