Nobody realizing that magically turning minorities into white people will do nothing to stop racism.
Luna believing forced impregnation is not bad enough for Draco Malfoy. What can be worse than raping a child repeatedly, while said child is surrounded by soulsuckers?
Our "heroes" kidnapping women to make them breeder machines, immortal and beautiful, but with no free will. The real Fridge Horror here is that everyone accepts their claim of consent at face value, despite this only happening after they were brainwashed, making the “consent” useless. Is this how the legal system works in Ornstead's fantasy?
Harry takes out life insurance policies on the Dursleys and uses a combination of forged documents and Confundus Charms to make it seem like they've had them for years. But while he talks about making it look like the Dursleys have been paying their premiums, there's no mention of him actually transferring money. If the insurance company notices that thousands of pounds haven't been showing up on the balance sheets, some innocent person's going to be falsely accused of embezzlement.
The Death Eaters apparently rape Muggle women as routine to the point it's only mentioned in a throwaway line.