Just a theory that may or may not be true. Before Judaism, previous civilization and the old religions (3 to 5 thousand years ago, even earlier) manage to take care of Satanism. In order to revive themselves, they picked on early Christianity, or say new Judaism by the time. The Catholic churches were found for their bidding (which many values are twisted). So everything after Catholic was indeed under the control of Satanist. (which they wiped out the early Christianity and picked on Jews, which Jews knows of ways to counteract them) When Catholic started acting agressive and manipulative, people get disappointed and start to look at Satanism (which would be the exact opposite of Christianity as we read of the bible in some way), which allow them to once again grow in number. Whatever crappy stuff Christianity still do today, devil worshipping will not bring any thing good. And still the creator would never bother to interfere minor species like humans.