I can't speak for Photonic, but he probably neg repped you because you harbor the same ignorant misconceptions about athesim as Uncensored. Some atheists may profess there is no God and believe it 100%, but that number is a tiny fraction of the majority of atheists who readily admit doubt and uncertainty when it comes to the unknowable. I, along with a number of other posters, have attempted to correct the misconceptions about atheism in this thread to no avail. If you guys want to believe that we are all tyrants hell bent on destroying religious freedom, you have every right to live in your fantasy land.
People who aren't 100% sure are really agnostics in my opinion, and most of those don't get all butthurt over nativity displays, or crosses on hilltops.
To use the term "atheist" usually brings up the model of the active atheist, the ones who show actual hostility to religon. Obviously this is not the case, but they are the ones who make the headlines, and like it or not, you are stuck with them as posterboys for the movement unless you can come up with some better PR.
I did use the term "asshole atheist", and thus do agree that the annoying ones are a subset of all other atheists.