@XXSpadeMasterXX,
Perhaps, rather than trying to construct a profile of the non-existent Atheism, your time would be better spent in learning to see people as the individual beings they are.
Some individual beings choose to believe in a God, some choose not to.
Of those individuals choosing to believe in a God, some choose to believe in a religious doctrine, there are many to choose from.
Of those individuals choosing not to believe in a God, some choose to act in a responsible manner to their fellow beings, some do not.
Of those choosing to believe in a God, some choose to act in a responsible manner to their fellow beings, some do not.
All human social structures are a collection of individual beings.
The label, Atheist, does not define a social structure.
The label, Atheist is simply a term used to denote a being who chooses not to believe in a God.