Also, you've noted here that the UNB "are from the Syilx Okanagan Nation, not Scw’exmx Tribal Council" but, like the mapper Rhodez commented earlier, as far as we can tell the UNB are members of both. So deleting the UNB from the STC relation would kind of be like... deleting Belgium from NATO (https://www.openstreetmap.org/relation/12733310). It's just not true.