You are right that the word “affiliation” is not perfectly appropriate here. It may be an affiliation if you choose to belong to a group like* American Atheists*, with whom you choose to affiliate yourself. However, I must insist that it is at the very least a religious opinion or conviction.
The point that we cannot ever seem to get through to believers is that Atheism is an opinion as deserving of respect and equal treatment in the state as Roman Catholicism, Protestantism Islam or any other “organized” religion. Just because atheists do not have a formal organization they all belong to (American Atheists notwithstanding) does not mean that their opinion is less deserving of respect. Things like “In God We Tust” or “One nation under God” are disrespectful of the rights of millions of Americans who are atheists or agnostics.
Religious believers often use the specious argument that removing these references to God from the public space would be “reverse discrimination” and would be catering to atheism at the expense of the believing majority.
This argument is ridiculous. It would be reverse discrimination if the state were to remove “In God we Trust” and replace it with “God does not exist” on American currency.
Simply removing these references from the public place would NOT discriminate against believers. It would confirm the fact that citizenship and religious belief, as well as church and state, are separate realms and that the state has NO OPINION on whether or not God exists, just as it has no opinion on which religion is right.
I find it very hard to believe that in present-day America, where the believing majority does not understand this simple fact, any teaching ABOUT religion in public schools would do justice to the opinions of atheists and agnostics.
Once again I ask: who decides what would be taught ABOUT religion?
Would A&A representatives be allowed to come into the schools and lay out the arguments in support of their viewpoint? Or would there be just a sentence in the textbook that mentions that some people do not believe in God at all?
Perhaps high school, college or university courses can teach comparative religion as part of social studies, and as long as it is an option.
But in the present climate of the religious right rampaging across the political landscape in America, I firmly believe that any proposal to teach ABOUT religion in public schools would be a Trojan Horse in which religion would sneak back into the schools.