here is something that may help....

at one point I was very angry about one of my alters. I said the words.... i wish this alter would die, i wish they would go away .....

my treatment provider laughed and told me it doesnt work that way. to think about something....

before I was abused I was one whole person. then I was abused and my one personality brain dissociated into many personalities. those many personalities came from where.... they didnt just jump into my body one day ( that would actually disqualify my having DID and confirming I was having delusions/ hallucinations in other words psychosis) so where did those others inside me come from....

they came from me, they were part of me, part of my one whole personality.

so if it was possible for my alters to die what would happen to me... I would also cease to exist little by little....

example if Rainy just up and died one day theres goes my ability to change into warm clothing, make a snack, watch tv, have the emotions of sadness, grief, depressions, playing, creativity, love for the universe because Rainy loved to watch stars, play with her toys, dress herself, make cookies and brownies and sandwiches, watch sesame street, ...

everything that rainy was would be gone forever.

each alter has their own way of being, their own jobs purpose, reasons for being created, how much control they have, what they do and so on which is now called sense of agency here in america....

can you imagine never again having a peanut butter and jelly sandwich, never again cooking, never again being able to dress yourself, never again going to the bathroom, never again doing everything that was that alter.

I hated being DID but I had to admit that my alters did things that I could not handle doing and that if they died and I lost all that they were I would not be able to function everything that they were would be gone...

from that day on I never wished they would die, not exist and such things because I knew denying their existence was just condemning me and my own existence.

and when one day one was not there it scared me at first but then I realized they were still there, just in a more normal way. they were back together with me as one whole person again...

if you feel like your alters have died my suggestion would be to contact yours or a treatment provider who can tell you more in detail about dissociative type alters, where they come from and where they go when their jobs\ purposes\ ... and other sense of agency stuff is done.