"Referred to as persecutors, some alters seek to harm the body, system, alters, and/or destroy personal relationships and the livelihood of which the body regards.
They may believe hurting the system is what protects it best, so their goal is to control and rule the system through perpetuated abuse.
They may be reenacting trauma, reasoning that more trauma isn't harmful and will just balance it out.
They may be fearful of good news, good experiences, and even good feelings and seek to stomp it out to avoid hurt/bad feelings."