No they aren't easy or neat. I've wanted to deal with that on the french collaborator side for forever -- I've hinted at it, both in Rat and Sword, with Susan's sympathy for the women at the maternity hospital, and her her recent stint with Peggy in France where Peggy is not quite as sympathetic, which I think makes sense. And, as in Tumnus' case, it also has engendered enormous resentment for Aslan who, he reasons, essentially forced him to become a traitor.
Re: A Beaver Turncoat