Allegories aside, the Bible definitely has a few LGBTQ characters, even if they're not portrayed in a very positive light. I suppose that means they'll be banning the Bible from school libraries? Not to mention a fair amount of historical literature… including anything featuring Leonardo da Vinci, Florence Nightingale, King James (yes, that King James), William Shakespeare, King Richard I, or Julius Caesar.
It will be interesting to see whether this makes the history classes easier, for lack of material to cover, or harder, for lack of references.
The EULA also prohibits using Nightshade "for any commercial purpose", so arguably if you make money from your art—in any way—you're not allowed to use Nightshade to "poison" it.