You might think that, and indeed for some that is true because it's merely one more form of belief. One more substitute of faith for reason and rationality. And in that - despite their labored protests, they are exactly the same as those they disagree with. But for a lot of the people I've talked to - like people who do particle physics, and astrophysics at national labs, and other types of highly educated people, and interestingly enough artists - it's not about belief at all. It's about knowing through doing. And knowing requires hard work. That stands in direct opposition to the easier way of giving into just believing. One is a vigorous - and rigorous - constant and unending pursuit, the other is acceptance akin to surrender and saying 'yeah, sure, good enough for me as long as I don't have to think about it too much.'
So sure there are 'atheistic' true believers. And like all true believers they are deluded. On the House show there were several remarkable bits of screenwriting, but none so cogent as House's remark that: If you could reason wth religious people there would be no religious people. And the militant atheists, so convinced of their truth (without any proof) are being just as unreasonable as those they deny.
Because any rational atheist is really an agnostic, and they are more than happy to admit two things. One, that the universe, as Einstein said is not stranger than we imagine, it's stranger than we CAN imagine. And there are vast things, far beyond our current abilities and perceptions, that we don't know what they are, or what their name is, is not a cosmic failing, it's just stuff we don't, or perhaps can't ever know. And, second, that regardless of which popular creation/cosmology story/legend people believe in as a matter of faith, it seems absurd, surreal and downright perverted and bizarre to any rational person upon first telling, and that first impression is correct. Talking snakes? Living in the belly of the whale? Really? God becomes man and suffers a death so horrible and completely psychosexual that only the fricking Romans could have invented it. Really, given all time and space he didn't chose the French Rivera or California in the modern age? Really?