Atheism has debased morality

Atheism; Did you ever wonder why the worst people in human history were atheists, Joseph Stalin, Adolf Hitler, Jeffrey Dahmer, why is this? It is most likely because of their way of thinking, take this for example; there is no physical proof of morality, it does not exist In a tangible form, so if you eliminate the existence of god because there is no proof, even though there is, then you can most definitely eliminate morality because it is not physical. There is a reason why Niche was an atheist, not a Buddhist, Hindu, Taoist, Christian, Jew, Muslim, Shintoist, Confucian, or Sikhist, why, because a religion, even philosophies such as Confucianism, demand a standard of virtue, atheism demands no virtue. Why, because atheism "demands no further qualifications than that you do not believe in god", so if your whole belief system is based on "I don"t like the bible it is always trying to tell me to do stuff", then you can pretty much guess why evolutionism is appealing to atheists. This is because evolutionism is just a buttered up version of Hitler"s famous quote "might is right", all it is- is survival of the fittest, Hitler used this to justify the Jewish holocaust, John D Rockefeller used it to justify whatever he did by saying "capitalism is survival of the fittest", he basically believed that the strongest survived and that he was the strongest so he deserved to survive but no one else did. Most every atrocity was justified by some form of evolutionism, and most of the perpetrators were atheists, so now we can see a direct link between atheism and mass genocide. Now, I understand that some people will come to me and tell me that Christianity did this also, but there is a difference, how- because the Christian perpetrators used a sick ideology and passed it off as Christianity, there is no link between Christianity and any atrocities done by so called Christians. Take one for example; slavery, the truth is- is that Christianity was only something convenient, I do not see how you can get "Black people are less than white people" out of "You cannot be a respecter of persons". I can see, however, you can justify mass genocides from "survival of the fittest", or "if I can"t see it; it isn"t there". Now, Christianity was not their only excuse for slavery, it was only their prime reason early on, they later shifted to a pseudoscience, skull shapes, so this was a branch off of evolution. So, atheists don"t believe in god, ok, we all know that, the issue is; is that "they were endowed by their creator with certain unalienable rights", there it is, if you don"t believe in god, you cannot believe in unalienable rights. Rights on the other hand, not unalienable though, they believe are endowed by the government. The problem is that this is called a "collectivist mindset", G Edward Griffin made a video on it called "the collectivist conspiracy", this guy is kind of- off, I would not believe it if not for the fact that this was among the conclusions drawn up during the milligrams test. I know of no scenario where a mass genocide occurred without a collective morality. So that is pretty much it, I would like to see your responses.