Though many people call themselves atheists, in reality they only reject the big monotheistic religions, and many reject it on the notion that many of the events detailed in the Bible, or the Quran, are so absurd it could not of happened. Of course, this realm of logic is about as irrational as the Christians and Muslims who look at the concept of no God and judge it by the restraints of their own religion. They fail to realise that if the God of the Books did exist (I am using Christianity/Islam/Judaism because that is where my knowledge lies, though I am hoping to learn more about Buddhism and Hinduism in the years to come), then He (I am using the pronoun He to refer to God, even though I do no believe that God has a gender) must be absurd to even exist. You can not comprehend God without going insane. Something that lives (and then you think, does He even "live"?) beyond the constraints of time and space, of sustenance and imposed morality. You can not even imagine how he could exist before the Universe, what this pre-Universe would of looked like or felt like, and it could of existed. If this God did exist, then surely it would not be too much to ask for it to be able to meddle in the basic physics of this Universe. How can the birth of Jesus from a virgin mother be so absurd when God himself fashioned the Universe from nothing, and created Adam from dust?
Next lies the evil of Organized Religion. Though I can not refute the evils that have occurred under the name of God, how can we trust that the same won't happen under atheism? Atheism could only work when everyone is Atheist, and every nation is ruled under the same laws and governments. This is not so much different from what every other religion believes. If everyone is the same, then there would be no fighting. But of course, this is impossible to achieve (without, say, divine intervention). If there was a single ruler of the Earth, and he or she decided what the people of the Earth should believe, would there be any chaos? No. What about if the ruler decided that the pleasure of the flesh is an evil sensation, and ruled to ban it? What if the ruler decided that religion and faith in a supernatural being were evil, and ruled to ban it? Nothing would happen, until someone decided to rise up, challenge the law, and cause chaos. Christianity may of caused many evils, but what about the September Massacres during the French Revolution, where thousands of the clergy were slaughtered in an attempt to destroy Christianity? So what I am trying to say is that it is impossible to have two or more beliefs existing without some sort of unwritten treaty, signed in fear. And let me tell you, though you may think that atheists do not care about religion unless they meddle with the state, you are wrong. What you are thinking about is secularism. Atheism does wish to destroy religion, just like religions wish to destroy every other faith.
On ethics, and we'll use the Islamic god in this example. He says violence is acceptable under certain conditions. Now, you may say this is wrong, and evil, and that violence is never acceptable. Fair enough. However, this can only be said if the God doesn't exist, and that can not be proven. What if you die, and you wake up, and you're standing in front of this God. You can not say that your law is evil. How can you? This God created you so you would follow his rules. So how can his rules be evil if God created good and evil, and anything else is a skewed, misinterpreted or misinformed take on morality. If your very purpose on the Earth is to follow these guidelines of good and evil. If the trees and the animals and the stars and the planets were created with these divine laws. If God had it so that in the beginning, murder was acceptable, rape was customary and theft was how the economy was meant to run, then so it shall be. Our society would of evolved with these notions in mind. (Reminder: this is all being played out as if the God described in the Bible, Quran and Torah do exist). The only way to even attempt to disprove this is by setting up a social experiment where you put a bunch of people with everything except basic survival skills, and maybe language (although language experts would orgasm if they are able to find out how and how long it took for language to develop), forgotten on a desert island and see how the evolve without religion, and if religion is developed. But of course, basic morality would stop this. And it would be impossible.
What did this long and practically nonsensical rant try to achieve? Well, what I am basically saying is that until God is without a doubt, proved or disproved, the question of ethics is up in the air. If God does exist, and which exists is proved, than ethics is basically a matter of looking up what is right and what is wrong. If God doesn't exist, then it is up to the people to decide, through years and years of discussion, debate and "deal with it", what is right and what is wrong. Well, that is only if everyone wants to have a universal declaration on ethics. If you are like Sade, or an existentialist, then it is basically what makes you happy even if it as the cause of the happiness of others. If you are altruistic, then it is what makes other people happy. But who knows what the world will be like after the death of God. Religion can be a beacon of hope in a godless society like the Soviet Union, or it can be a crusher of hope for minorities in theocracies. And who knows, maybe religion would develop again in the world, when scientists can not explain why the Universe must end, why the Universe must start, and why we must die.
But in the end, for me, it boils down to this: am I willing to risk an eternity after death for a single question born out of curiosity?
EDIT: Damn you MsBlack! Now I'll have to look over your post and reply sometime later.
EDIT2: Ok, maybe now. A short one though. First off, although your reasoning behind kindness is depressing, it is one I follow to some extent. Religion is definitely followed in self-interest, but in my previous logic as to why God's ethics are inherently good if he exists, the same goes for his laws. If we must be kind for fear that we will be punished, then we must of been created so that if we don't follow a combination of laws and ethics, then we won't be kind.
Also, your criticism of religion, that it is illogical because it calls itself illogical, is illogical in itself. Just because you do not understand something, does not make it illogical. Thousands of years ago, it may of been illogical to say the Earth was round. And for sure, it would of been. We had not yet discovered gravity. Yet, it obviously exists. It may be fair to call Flat Earth believers illogical now because Round Earth has been proven, yet you can not call religion - nay, God - illogical just because it is outside your realm of understanding.
EDIT3: Hm, I think I misunderstood your talk about faith being illogical, and in part, now I agree. Yes, when you look at your religion and you say "I believe because I believe", yes, that may be illogical. However, what else can you say when you are arguing against an equally bullheaded and stubborn foe? Someone who has put their faith in other matters, such as their faith in science, the word of men, the structure of experimentation. A black hole defies all physics, and yet scientists back it up by making more theories, and more laws. Quantum mechanics was born out of metaphysical bullshit, and yet it is becoming more and more accepted, even though it proves theories with more theories, and so on. Do not think I am some sort of religious nut who hates science, I don't. I believe in science. However, faith in science is having faith in the unpredictable universe, faith in this region of space, faith in the word of scientists who can make bold statements, which will keep on coming as we evolve into more scientific beings furthering our understanding of the universe, by making statements which make us look like the masters of the universe, creating laws to represent every region of space. What I'm trying to say in the end is:
Faith in science is still faith.