Your link doesn’t suggest that the book is actually selling - merely that it is available for sale. It’s just another medium, and like hanging in a gallery, does not automatically mean that the artist obtains any financial benefit which they are able to pass on to others.
What about for families such as mine who don’t accept money? US courts don’t offer any other form of civil compensation. As someone who is both an artist and avoids money, I don’t find any of this helpful. And it doesn’t address your concerns about the significance of consent. Consent seems like a criminal rather than civil problem, which is why people can’t rape and dodge charges by paying the victim. If they had a legal expectation of giving consent, this would still have been violated.
