Organized religion has had some problems, including Christianity.
You include athiest regimes that have been a thousand times more murderous and ugly than the worst times of Christian wrongdoing. Communist regimes including Russia, China, Cambodia, Vietnam, etc. have murdered over one hundred milion of their own citizens for not believing the official dogma. The Catholic Church at the worst of its horrible slide (no excuses...they screwed up) killed less than five thousand during the Inquisition...that's "The Inquisition"...the one that atheists point to as the worst example of intolerance in the known time/space continuum. The Salem witch trials...the other worst example of intolerance (no excuses this was not right) in the space/time continuum killed 18 (some of whom deserved it from what I understand).
Russia killed between 60 and one hundred million
China only about 20 million ...or maybe 30...
the killing fields of Cambodia...only about 2 million.
So please grow up and realize this is an example of straining at gnats and swallowing camels. Good luck with your atheist regimes. Please ask your liberal atheist friends (or even your so-called conservative ones) not to murder or torture you and your family when they gain total power. Like I said...good luck.
BTW Hitler did not have a religious regime either.