- Atheism simply means the absence of belief in any gods. Obviously, a baby cannot be born believing in god anymore than he can be born believing in Santa Claus. Clearly, all people are born atheist.
- Being atheist says nothing about a person other than the person does not believe in the existence of any gods. Being atheist does not indicate whether a person believes in free enterprise or socialism. It does not indicate whether a person is moral and ethical or not.
It is highly probable, however, that an atheist in America has much higher standards of morality and ethics than a religious person because in America, religion is so pervasive throughout society that a person has to do some serious thinking about right and wrong and truth versus myth to escape the religious brainwashing. This kind of rational thinking naturally leads to rational, sensible morals and ethics.
I don't know if law enforcement maintains statistics on the religion of criminals but I predict very few murderers are atheist. Let's suppose the population is 10% atheist. I predict that much less than 10% of murderers are atheist. Whatever the true percent may be, it's likely that the relative percentage of atheist murderers in prison is much lower.
It is not coincidence that the mafia has its origin in the same country as Jesus and the Catholic Church. Any religion that teaches a person he can commit murder and then simply go to confession and it's okay is just inviting the deterioration of morals and ethics.