If I came into a massive windfall, I would want to invest a portion for income, e.g. stock dividends, and make most of it into a trust fund of some kind to decouple libraries as much as possible from tax revenue. Part of the reason many people protest library materials is their objection to being forced to fund materials they dislike. If I could remove that perfectly valid objection, it would put me in a better position to A. tell them to worry about their own discernment first, and B. insist a special collection of my own preferred subversive literature is added to the catalog.