A very, very common Exclusionist Talking Point goes like this:
- DID/OSDD Only comes from Severe Repeated Childhood Trauma
- It is Bad And Ableist to suggest otherwise because it spreads Misinformation about DID/OSDD
- Therefore, plural systems who don't come from trauma are Bad And Ableist because their claim to existence spreads Misinformation About DID/OSDD
Putting aside the question of whether DID/OSDD really Only comes from Severe Repeated Childhood Trauma for a moment*, you'll notice that there is an unspoken additional step in the logic here:
- The only kind of plurality that is Real And Valid is DID/OSDD
Which, like. Is glaringly false given *waves hand at everything I linked above*. You would assume that politely pointing this out to exclusionists would make them at the very least revise their Talking Point, but in my experience, all it does is make them double down and repeat themselves over and over. They fundamentally do not want to acknowledge the validity of any kind of more-than-one experience that exists outside of the medicalized sphere - the rest of the argument is just a prop for this.
So, if you see someone yelling this stuff from the rooftops and they won't listen to you telling them about the diversity of plurality, it's not your fault. They just don't want to listen. Block them, report them if they're being especially noxious, move on.
*This is a whole debacle of its own, but the most fundamental takeaway from it is "someone's trauma and medical history is complicated and personal, and absolutely none of the business of internet strangers."