But it may also be a sign that our hyper-politicized charitable sector has reached an inflection point. We literally wrote the book on Arabella — a book that features Bill Gates on its cover. This pattern repeats across the charitable sector. Advertisement AdvertisementAdvertisement AdvertisementDon’t expect the Gates Foundation to be the last major donor to grow cool on politicized philanthropy, and don’t expect Arabella to be the only loser. Big philanthropy made its bed with the left, but the Gates Foundation may become the first of many to get out of it.