Today, my daughter will mostly be wearing...

[Oldandeasilyconfused]

Fundy atheists can and do exist. They are 'fundy' about their atheistic views (be what they may).

I think you may be conflating "fundamental" with 'dogmatic' and 'closed minded' which is how fundamentalist believers tend to come across.

By definition,there is no such thing as a 'fundamentalist atheist"' There is no doctrine or ideology about which to be dogmatic and closed minded AS AN ATHEIST.


BUT
Many atheists are ALSO dogmatic and closed minded about a whole pile of ideas and sometimes very aggressive. I do not accept such things are the result of their atheism, rather the result of being flawed human beings. It's my observation that we human beings usually rationalise our beliefs and actions after the fact. It's a matter of degree.

EG I can't abide Richard Dawkins, I think he's an egomaniacal prat with nothing original to say. I find the few ideas he hasn't stolen from better minds facile and unsupported by evidence. His sweeping generalisation that it's child abuse to teach children religion,is facile ,obnoxious and unproven. So too the claim that religion is evil IN PRINCIPLE.