The Armenian, Assyrian and Greek Genocide's committed in Turkey were secular my ass, Turks killed Armenians, Assyrians and Greeks because they were Christians (and disliked minorities) for the same reason Germans killed Jews because they were Jewish (and disliked minorities). That you honestly believe that Turkish propaganda machine drivel about civil war and that religion was not involved at all is pretty sad and naive to say the least.
Shall we go through
every example of Christians killing Pagans, Jews, and Muslims?
Every major religion has blood on its hands,
as do atheists. Humans in general tend to kill eachother.
Just before you do the Hitler-Stalin thing. Hitler was agnostic or roman catholic (he both publicly and privately stated he disliked Atheists and declared he had wiped Atheism from Germany) and Stalin was brought up on Russian Orthodox and never really gave up his faith (most communists I have spoken to admit to that as well), rather it just spurned him on (he was a sadist).
As for Christianity itself:
*If you go for colonialism the abuses were spurned on more by quest for wealth and power, and Christianity was spread in addition.
*If you claim that Nazi Germany was a christian state then you have to refute the Nazi state's attempts to eliminate or to some extent supplant Christianity from society and replace it with the Nazi state ideology.
*If you point to the crusades then you have to deny that Muslims were just as brutal and violent as the Christian crusaders, and had at the very least an equal intent for conquest (which they did as the Muslim armies went on to invade Europe, not just content on Jerusalem and the middle east).
*If you point to the Cathars, Jews and other minority groups being persecuted by Christians then you cannot deny Muslim persecutions of minority groups especially Kurds, Assyrians, Persians, Greeks, Jews, and Armenians.
Now you can deny that's an impasse, but I disagree as some people don't see truth just what they want to see.
So perhaps you will refuse and continue on trying to prove Christian and Atheist evils while ignoring the fact that anything you can bring up about Christianity or Atheism can be easily refuted or even matched with something devious done by Islam or another faith.
But while its true that any faith or ideology can allow evil things, that does not mean that you should negate the evils of one by saying every faith or ideology is exactly the same or just as bad. If I was to add up what really happened more people have been killed by Islam than by any other faith (especially if you include India in that list).