I'm pantheist. I've arrived at that, after growing up theist, going through periods of agnosticism, back into theism, and then seeing "Jesus" through the universe, nature, and everyday people. It isn't for everyone. But the idea of atheism always felt like a con, and now that I understand my own faith, saying "I don't know" seems to me like a very intellectually honest position. "I don't know" may become "I don't care" which is still honest. It may also come to belief, but honestly, I don't care about belief or not, I care about honesty.
Suppose I were to proclaim, "I know there are no unicorns because I haven't seen them, and science says they shouldn't exist." This is very intellectually dishonest because firstly, I the theoretical person making this claim, has not been to other areas outside New Jersey. Not to remote regions of the Earth, not to hidden underground areas inside the Earth's crust with a gooey center where unicorns are just hanging out chilling, and not to different planets also capable of bearing life. And there is also the idea that unicorns exist but in a different time (long ago, or perhaps what horses will one day evolve into), are able to conceal themselves. And there are some who believe that the reason writers came up with such an idea is because they are attuned to alternate dimensions. Further, while pegasus is definitely out, because of laws of aerodynamics, there isn't a single law of science restricting animals from growing horns from their head. So the idea that science disproves it is also wrong. There also isn't a law of science disproving God, but there are rules of causality enough that a random uncaused universe is untenable as an idea. "I don't know" is a fine answer, since whatever did cause such order could be literally anything.
Why unicorns, btw? Because I'm a fan of the movie The Last Unicorn, of course.
"I don't know if unicorns exist," is honest. Just as "I don't know if God exists" is honest. But once you start getting into "I know that... isn't so" you get into a weird situation where you are expected to be omniscient yourself. That is, the only way you could disprove unicorns did not exist beyond all doubt, is if you were God yourself, and if we extended that idea to God, we'd run into a paradox.
Even theists only go so far as to say they "believe" something exists or not. So why don't there seem to be as many agnostics as atheists? I'd like to see far more of you guys.