Many TIs have this situation with their family unit and in a larger context it becomes obvious its also the working mechanism behind smear campaigns.
Especially those who find they may be TIs due to being Survivors of SRA, high level programming, cults etc.
In MK Ultra linked families theres always the same patterns of behavior and family structure with similar dynamics. Without this working to the advantage of the main perpetrator the Survivor would not be so easily controlled.
Running away from or stopping this mechanism in ones life brings great resistance and resentment from the family unit.
In order for members to survive their own abuse and compartmentalized pain and suffering the scapegoat must never break free nor can it be admitted that's their function.
Even after breaking free and gaining autonomy the scapegoat will experience family members trying to relive old lifescripts where that was their position in the hierarchy. This must be avoided and discouraged for the scapegoat to heal and grow properly.
Most of these families tend to die down with heavy repeated dynamics once the main perpetrator dies. The family looks like its 'falling apart' but its simply the members no longer being kept in line and in patterns of abuse and control by the main perpetrator.