No. It’s written by the survivors.
Or are you going to tell me that the Amarr have no version of the history of the Minmater Rebellion, and the Caldari have no history of the Gallente siege of Caldari Prime that forced them out of the Luminaire system when they left the Federation?
Citation needed. We’ve seen no evidence whatsoever of Triglavian attempts to assimilate into other cultures or societies, so far as I’m aware. At most, we’ve seen the prattling of their kyber lapdogs, happily gnawing on the scraps their masters drop from the table.