This one is very interesting to me personally as my university dissertation was precisely on this subject - and I argued that, yes, Richard Dawkins and others are promoting a scientific 'fundementalism' akin to the religious kind.
Now, to clarify, I don't actually believe my argument to be true (call me a cynic, I was playing for marks, and was happy with my 1st...controversy will get you anywhere in the academic world), and nor did I then, for a variety of reasons.
Firstly, your questions sets out that there is an intrinsic dispute between Dawkins and Christianity - this is not the case. Richard Dawkins argues against gnosticism in general, but his attack is towards those closest to him, and those most threatening to reasoned and progressive society - and being British, that means Christianity. He even calls himself a 'cultural Christian'. Furthermore he has little trepidation in refuting the claims of the Islamic faith, in the current public profile the next closest to most of us, and by extension all other gnostic ideologies.
Secondly, Dawkins argues in favour of scientific thought and is therefore dichotomous to the concept of fundamentalism, which has been taken to mean stubborn adherence to an idea or belief system.
It does not, fundamentalism is quite specifically a Protestant Christian form that espouses strict and literal interpretation of the Bible. It arose in its modern, recognisable form from American Millenarians in the 19th Century as a direct response to the publication and widespread acceptance of Darwin's Theory. It is, to all intents and purposes, a more recent idea than evolutionary theory, and therein lies the frustration of many clear thinking individuals.
The Islamic variation predates the Millenarian by a few years and was a politically motivated change in the 18th Century, which advocated a return to an Islamic power base after the crumbling of the Islamic Empire, resorting to Holy War if neccessary.
Scientific thought cannot be fundementalist by its very nature. It is the antithesis of fundementalism. Dawkins, among others, have little problem with a spiritual nature in humans - there's research that suggests we may have evolved (somewhat ironically) a part of our brains that must in some way have some kind of spiritual understanding, no matter how it manifests itself. I personally would have no issue with a Christian or Muslim who accepted our universal scientific truths, and acknowledged their value to us all, but maintained that there was perhaps in theory an overall 'Creator', perhaps passive, perhaps occasionally active in the context of megatime, perhaps absent since the big bang. I would disagree with them, but I would not be offended. I am offended by Christian and Muslim fundamentalism and ignorance, and I am therefore full of gratitude and admiration for Richard Dawkin's work, and his publicising of scientific (for which read 'atheistic') reasoning.