In the history of the world, nothing has been the catalyst of more grief, hatred, war, and crime than religion. Religion allows a person to hate, kill, torture, or steal, while allowing him to recuse himself of all blame. Religion causes people to break the laws of ethics and morality in the name of a god.
Religion dulls the mind and weakens the senses. It makes "God did it" seem like a reasonable answer to anything at all, squelching questions of why, and how, and when, and replacing these questions with repeated mantras and prayers to nobody.
Religion is exquisitely profitable, with most adherents tithing a portion of their income. The churches, synagogues, and mosques, which do little to serve their community outside of "outreach programs" (marketing and recruiting), pay almost no taxes.
Religion spreads like disease through societies, rarely coexisting with pre-existing mythologies, rather preferring to conquer or be conquered. Religion is anything but tolerant.
American Atheists is not afraid to point out that which is true: religion is ridiculous. Mythology and religion are synonymous, and none is better than another. Religion is malicious, malevolent, and unworthy of respect.
You probably knew that already.
We're respectful of the American people's individual rights to practice as they see fit (equal to our rights to do the same), but this does not mean we have to respect the decision. If you choose to ignore logic and knowledge in order to believe in an invisible magic man in the sky, or Santa Claus for that matter, you've made a ridiculous decision and we're not going to pretend it's "just another way of looking at things."
We challenge the ethics of the professional liars who claim to speak for gods to bilk parishioners into giving away their money in exchange for an immortality that will never be granted. We also challenge the ethics of the politicians who use government to further their religious agenda, and vice versa. We will not let anyone's religion infiltrate our schools, our government, or our pockets, at least not without a good fight.
Atheism, the absence of religion, is the only "ism" that obeys the laws of physics. There is never a "well you have to have faith about that part" in atheism. Nowhere in atheism is there a text that must be obeyed, or a preacher that knows the "one true way." In atheism, "god did it" is not acceptable, but "I don't know" is just fine ― because it's the truth.