Another point: Tell me, what Atheist organizations have raised money, medicine, food, clothes, shelter and gave to the poor or refugees in war torn parts of the world like the Catholic Church, Red Cross or Salvation Army? Next thing you will tell me is that the Red Cross is not a religious symbol.
The fact is my friend, you currently enjoy what Christianity has given whether you believe it or not. Freedom.
Next thing you will tell me is that there is no such thing as divine law in the Constitution.
I employed a bit of hyperbole, I admit, but you are putting words in my mouth. I have nothing against Christianity, and am not trying to argue that Christians don’t do good in the world.
I won’t cite any “atheist” organizations, but there are secular organizations, such as Doctors without Borders (and the Red Cross, despite their religious symbolism, they are not a religious organization).
As far as the original point goes, communists in Russia and China and elsewhere did a lot of sick things for a lot of sick reasons. Was one of them religious? Yes. But plenty of atrocities had very little to do with religion.
Similarly, religion surely played a part in the framing of the constitution and the building of our freedoms, a central part, even, but there were other influences as well.