People don't make decisions within these sorts of groups. They try to avoid more torture. Then they are tortured into thinking they made a decision of their own free will.

Then, suddenly, the work became dangerous, not only for clients but for therapists as well. A well-funded, highly organized opposition appeared, seemingly out of nowhere, in the early 1990s. Its goal was to discredit the existence of ritual abuse, and one of its tactics was to actively undermine any effort to discover what had been done to these clients and anyone who attempted to help them recover.

When one of my early teachers, for instance, recognized that many ritually abused clients were still being abused while in treatment, she insisted that they could not be treated on an outpatient basis, but should be hospitalized and kept from their families. She was targeted with a series of court cases involving false accusations that she had allegedly abused clients in hospital. The experience was devastating to her.
And she was not alone. Many others faced persistent attempts to discredit their professional expertise, or legal assaults that robbed them of time, energy, and even the courage to continue to treat clients, write, or teach. Therapy professionals in both direct services and policy making, members of the criminal and civil justice systems, and the general public were systematically indoctrinated via the media. Many now share the view that people who disclose ritual abuse or mind control content suffer from "false memories” induced by "over-zealous therapists," and that dissociative disorders are iatrogenic (or else they do not exist at all).

Why Cults Terrorize and Kill Children – LLOYD DEMAUSE
The Journal of Psychohistory 21 (4) 1994
"Extending these local figures to a national estimate would easily mean tens of thousands of cult victims per year reporting, plus undoubtedly more who do not report.(2) This needn’t mean, of course, that actual Cult abuse is increasing, only that-as with the increase in all child abuse reports-we have become more open to hearing them. But it seemed unlikely that the surge of cult memories could all be made up by patients or implanted by therapists. Therapists are a timid group at best, and the notion that they suddenly begin implanting false memories in tens of thousands of their clients for no apparent reason strained credulity. Certainly no one has presented a shred of evidence for massive “false memory” implantations.

Lies that cause survivors to deny or recent abuse memories and experiences

⸱ The alters who are designated to live in the "real world,” going to school or college and holding jobs while interacting with others in adulthood, are trained, usually at home by parents, to disbelieve any memories that might come up.

⸱͏ Children are taught to believe that they got the idea that they were abused from something they read or saw on television or from someone else’s experience or from a therapist. (This is a basic argument of those who attempt to discredit these experiences in the public eye and among professionals.)

⸱ Children are also taught that if they experience flashbacks of awful abuses, those must be dreams or imagination or signs that they are crazy. Nothing bad really happened to them

Threateners and punishers.
The structured personality system of a mind control survivor is always protected by a security system. The observers and reporters watch any parts who are “out” in the body, and sometimes those who speak to one another internally. They report to others in the hierarchy, who then issue threats and order punishments to be administered by those parts who are trained to punish. Punishments include such things as flashbacks, flooding of unbearable emotions, painful body memories, self-harm, suicide attempts, and flooding of memories in which the survivor perpetrated against others. Each insider who punishes has his or her place in the hierarchy, and if he or she fails to do the assigned job, a backup will do it while the disloyal punisher himself experiences punishment or is banished. Parts who believe themselves to be soldiers or guards are common in mind-controlled (including ritually abused) systems, and, like real soldiers, they are trained to both obey the abusers' instructions and enforce obedience in other parts.