hey, you are replying a lot around fictive stuff and throwing quite a few "accusations" (not sure if thats the word i want.)
As a fictive, yes, we KNOW we arent the character. we are fully aware of that. while i do agree i and most others in our system HEAVILY dislike the "sourcecall" "sharing memories" stuff, as it never made sense to us, and even then when we blindly followed it somewhat, it was used to abuse us. so you are correct about that and i hope other systems who are newly diagnosed/process of diagnosis do not fall into the rabbit hole we did, but i should make it clear to you that most of us fictives DO experience these fake memories, especially when a fictive newly splits, a split in general leaves the alters and system disoriented and confused. a lot of DID communities online fueled our "psuedo memories" and it only harmed us.
fictives DO experience these fake memories, having them doesn't invalidate the existence. you just need to not fuel these "memories" because it can be harmful for that alter to the whole system. sorry that this was long, but a lot of your comments were borderline fakeclaiming fictives, which are proven to be real. yes, some fictives can be convinced they ARE the character, but it's them and their system's responsibility to alert them of the truth, instead of the entire concept of our (fictives) existence being claimed to be fake.