Atheists want their unbelief to be treated like belief. They want their anti-godliness dignified with their own set of ‘chaplains’. Next thing you know, the pedophiles in prisons across the country will want their own pedophilistic chaplains too.
Just FYI: The armed forces implement many important services, such as counseling, through the chaplain corps. As members of the armed forces, atheists would like to have these services without having to deal with religious bias or proselytizing.