Atheism doesn't have morals or any agenda for that reason. It's a way of thinking based on reality. The rules and agendas made up by atheists are theirs alone. Atheism isn't a religion with a doctrine and people who are atheist are as unique and different as any other person.
The big difference in religion and atheism is within a statement.
Atheism: I think we should do this because my thinking had brought me to that conclusion.
Religion: I think we should do this because there is an invisible man in a cloud watching and judging us.
If there are atheists that are assholes then that's their decision. At least they cannot blame their actions on a higher power and have to be responsible for their actions. Religious assholes however will use some doctrine as an excuse. A doctrine that for some reason is arbitrarily protected from other doctrines.
It seems we won't get along in this topic and I don't want this to dissolve in a shouting match. I wish you all the best anyhow.