Firstly nothing can really be completely proven to be true or false, so saying that God mustn't exist because there is no "proof" is the same as saying he does exist without "proof". There are things that can't be explained by Logic and won't ever be explained.
Plus what exactly is atheism, disbelief in religion or belief in only what is logical since they are two different things.
Now im not sure what i would be classified as, I don't follow any one religion, but i believe in there being more to existance than what can be explained by logic, i beleive in a soul but not a particular religion one, I believe people and the universe are connected in some way, i follow my own thoughts, but i don't see others who follow a religion as wrong just a different way of seeing, I don't know what the meaning of life is or if there is one but i don't believe that what we do is pointless.
And those that say they pity those that belive in religion, im sure that those people will pity you for not having anything to believe in, nothing to feel safe knowing. And i don't mean the whole going into heaven thing, just knowing that there is something beyond the stuff you see and feel.
Put yourself in the position of something like God for a second, think about what would give you the most joy, showing people your amazing powers and making everybody worship you, or seeing what they do by themselves, growing and learning, Even though i don't have a child or something it can be likend to what those that do have them feel from what i have seen and heard from these people, they just like to see this person experience life, come up with their own thoughts and dreams,this can be seen as what this omnipotent being, or as i think, the universe is actually something that is conscience, and we as people or anything are part of. So doing anything that takes away from that like proving you exist will destroy what you want the people to do, to grow and learn.
But all that matters is that you live a good life, nothing else matters, respecting and helping those around you gives you a hapiness which can't really be explained logically, helping one person in the human race does not affect its existance, doing it so they will do something in return is not something that would give you joy, if you only believe in logic then helping your fellow man is not always logical, so how does it make you feel better.
Also that thing that Pgreg said about asking people who created god. The point is he wasn't created, it is that he always existed and always will, it is based on faith, so when you ask that question of people they have to respond logically to something that they don't use logic to understand. Plus using something taught in science can hardly say anything but logic rules.
Religion and Science are really not direct opposites as they are made out to be by so many. Yes Religion is based on faith and Science is based on logic but it is not logical to use something that can't explain something to explain something. Logically it is impossible to completely prove something. So if you can't completely prove God doesn't exist and it can't explain why god doesn't exist then saying logic proves it doesn''t exist is not logical.
Science only tries to explain something logically, it doesn't say anything not logical is wrong.
And think of this, Buddhism is to my understanding a religion based on alot of logic. I prefer Buddhism to other religions but i don't really follow it, i agree with some of what it says. The church in cristianity says what christianity is, not the church follows it really. But it depends whether Religion is something based on following God or a thought that is followed by people. If it's the latter then atheism is actually religion and if thats so then also Atheism is no less faith then other religions, it is a faith that God does not exist, it is explained by logic but religion is also explained by what people feel when they do things and feel things, yes more has been included to make it more but the principal of all religions is the same, be kind to your fellow man and remember we are all connected, whether it be by god or logically since we are all human.