Yes, because human sacrifice, slavery, and mass murder have NEVER occurred in Christian civilizations. Well, other than in European/US civilization over the last 1000 years or so, that is. I'd bet there's been some idol worship in our civilization, too, and I know that there's been quite a bit of ignorance and darkness in our civilization. Judge not, lest ye be judged. None of this is pertinent, however. Your original statement was that there cannot be civilizations without Christianity. I gave several counterexamples to that statement. It is irrelevant whether or not you approve of those civilizations; they are nonetheless civilizations that arose without the benefit of Christianity.
My original statement was that we would have no USA, no freedom like we enjoy today, without Christianity. Without God, without Judaism and without Christianity, with man as God, you will re-enter the dark ages to end all dark ages