1. My morality is based upon two factors; my belief in natural rights and biological coding. I've made a post about this before, but to sum it up briefly, altruistic organisms that live in close communities and live long enough to witness the repercussions of their actions are better fit for survival than selfish animals. Altruism, at it's core, is selfishness disguised as selflessness. By acting selflessly to help another, you are unknowingly acting to benefit yourself and allow your genes to be passed on at a higher chance.
2. While I don't have any objective, cosmological meaning to my own existence, I have given myself a subjective reason for life, and that is to educate people about libertarianism and anarchism. I wish to see my offspring grow up in a better society than we have today that values the individual above all else and is based on freedom, not artificially acquired order.
3. Not really. Faith, by definition, is belief with evidence, something which science does not hold in common. Science is based off of observable, testable, and repeatable experiments that can be proven true without a doubt, and if new contradictory evidence comes in, then we will begin believing that within seconds, something that followers of a religion cannot do so easily. Also, faith is inherently a positive philosophy, while atheism is a negative philosophy; a rejection of faith.
4. No, it is a lack of religion. You wouldn't say that people who don't play sports are actually playing their own type of sport, would you?
5. If an unproven belief system that has fueled wars, exploited millions, and tries to oppress those who don't believe in the system was held as fact, then I think there would be groups that would reject this sort of behavior. That's kind of like asking why a resistance group would form in a dystopian society. Why would they form? After all, they don't hold any of their own beliefs, they just reject them.
6. I don't hate God, I just don't think he exists for obvious reasons.
7. I've read parts of the Bible as well as the Quran. Sure, some of these books held some inspiring literature, but they're not based on fact. They're stories, and that's that.