We have been given no data on Ymir, in the Dresdenverse we have on the White God, Odin hasn’t been forthcoming on his family, what we really need is a Larry Fowler Special dishing the dirt on the entire clan.
Kringle isn’t a Faerie he has a Faerie Mantle like Molly (cultural appropriation at its worst). A guest has to be invited in and whilst a goodly number of children invite Kringle in, I doubt unless an adult resident does so it sticks, a minor lacks the capacity to enter into a contract. The Fae are big on that.
Have you ever tried to get an institution to change ? I doubt they even have a proper ladies toilet. However I do not doubt Murphy is raising hell in Valhalla forcing change, through a kick to the groin a cogent well structured argument.
Gard may say that she is fine, but her and her sisters don’t stay there. As it stands Nathan is also probably making it known that he unhappy about the lack of a university level research library, as most of his new compatriots relied upon the oral tradition of the Edda’s rather than learn to read, let alone indulge in a doctoral level of academic debate.