Well, your random site was inaccurate. It concerns me that Christians, and especially fundamentalists, often spread negative propaganda about people of other religions. Accusing Druids of human sacrifice is one example of that propaganda. It is on a par with saying that Jews eat babies.
My own explanation is the abundance of human creativity. Religious expression has naturally taken on different forms in different parts of the planet, because people are creative and have found themselves in different times, places, and circumstances.
That's good news if it's true. Over here in America, I'm sad to say, Christianity is still the dominant religion. Christian churches are all over the place, and my own apartment is surrounded by them. I can't walk long in any direction without passing by a Christian church. The only churches I know of that even welcome Pagans are the Unitarian and Universalist churches, and even these are still predominantly Christian or at least theist.
I'm not offended. I know how silly fundamentalism is.
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