The "Evangelical Nuts" were mostly useful idiots, but they were led by people who were part of the same op as False Memory Syndrome Foundation. There's a very obvious back-and-forth ratchet dynamic between the two camps, perhaps most clearly emergent in the pages of Ross Cheit's book The Witch Hunt Narrative (please note that Chait would be careful to distance himself from both that assertion, and me entirely).
It's also hard to miss the fact that there were MK controllers operating in the middle of the Christian "mind control" / SRA advocates and whistleblowers, most especially poor Cathy O'Brian.
The actual practice of MK conditioning is too weird for Americans, or most law enforcement, to even grasp -- Satanism is much simpler and more palatable. And "Satanism" was the narrative that showed up, again and again, to muddy those waters.