Richard is, politely, rather dismissive of anyone who doesn't believe the exact same thing as him. He has a set of beliefs, and science darn it, thats what he BELIEVES! and I doubt very much that anything you, or I or anyone else could tell him is likely to make him change his mind. Thats pretty much what I think a "fundamentalism" means, dogmatic adherence to a set of beliefs to the exclusion of the considertion of any other POV.
He's a heck of a scientist, but not exactly open to the possibility that he is wrong, or that other people's beliefs are as valid as his.
This, in a nutshell, underscores the difference between skeptics of science and skeptics of religion.
The very word "believe" is given way too much inappropriate lip service by religionists when they describe scientists or proponents of science and reason over faith. By that, I mean it skews the word unfairly in their favor.
Clearly, there is more than one way to arrive at a "belief." One way is through faith. Another way is through the scientific method.
Holding a belief that is arrived at through faith may or may not mean the belief is unshakeable, depending on the strength of that faith. From my personal experience alone, that strength may come from a combination of indoctrination, societal pressure, parental reinforcement, ignorance, fear of death, and so on.
Holding a belief that is arrived at through the scientific method can be unshakeable as well, but for a different reason. That reason is called evidence. The better the evidence, the more unshakeable the faith, scientifically speaking. If, at this point, some minds begin to turn off, I genuinely regret any perceived offense. However...
Evidence is not a personal revelation or untestable conjecture. Evidence, again, scientifically speaking, comes in the form of data collected from peer reviewed experiments based on testable hypotheses and from a track record of proven predictions made from existing theories which, although they may continue to be refined, have not yet been disproved even though they are falsifiable.
So, use the word "belief" if you like, but I hope it's clear how fatuous the application is in the context of the above quote.
As to the matter of changing Dawkins' "beliefs," you may be right that that might never happen, but surely you can't fault him for sticking to a viewpoint that is supported by a mountain of scientific data. That is, let me point out, precisely the reason you should trust him.
And, since you brought it up, I happen to not think all beliefs about the natural world are equally valid. Do you?
-Tom