got pissed off at someone online so heres your friendly reminder that endogenic plurality ≠ did/osdd plurality and no one is saying it does.
plurality, multiplicity, “parts”, and systemhood is a concept that exists on its own. it is severely understudied in a medical sense but highly documented throughout history, and it exists as a separate thing from did & osdd.
think of it like a umbrella term in the same way you would trans, or neurodivergent, or bread. they all exist as a general thing but theres also multiple more specific types under each category. did systems and osdd systems are their own individual types of systems and plurality, and endogenic systems are a different type of plurality. they are not exactly the same thing although they fall under the same umbrella term and share similar experiences.
you can not have did or osdd without trauma as far as the research shows, however did and osdd is not synonymous with plurality as a whole and other types of plurality can be experienced without trauma.