How can Xians complain about atheist morals when Christianity itself has such a narrow view on morality?

As an atheist I've never been told I'm immoral. I think most people who are not specifically trying to victimize atheists know that it's an individual's actions that make them good or bad, not their beliefs. However I believe I have had Christians deliberately misinterpret my actions, or claim I did things I didn't do, or claim I did things for bad reasons. Yet I was never told I was bad because I'm an atheist. And I *have* been told I'm good.