>>3232568Being a "horde" soldier is no different than being a soldier in any other force that is the aggressor and actively invading. Adora isn't who she is because she's was raised specifically by the IP's Horde, because there is literally nothing unique or standout about them in comparison to many generic real world armies. Her being a first one means fuck all even within the show, because it doesn't mean anything in general. She doesn't think she's one, they aren't appreciably different than any other group of humans, she doesn't know anything about them or their culture, and her being She-Ra is only important to those specific events that happen in the story.
You are of the mistaken opinion that a character's identity exists in some bizarre collection of arbitrary titles associated with the plot points of that specific narrative, which is pretty easily proven to not be the case, since Adora stops being a Horde soldier in episode two and yet is still somehow Adora, and was still Adora the first two seasons of the show where she was simply an orphan and not a rescued First One, and continued to be Adora at the start of season 5 while grappling with no longer being She-Ra; which kinda makes it pretty obvious that none of those traits are all that important to Adora being Adora.
A character isn't tied to events, or to roles in those events, but to a collection of traits, personality features, etc. that are, within that specific narrative, partially formed by those events. If you take that character (read: collection) and instead put it in a different narrative, with different events producing those features, they don't stop being that character.