Should we judge a work by the character of its creator?

‘Most of my heroes are monsters, unfortunately,’ Joni Mitchell once said, ‘and they are men.’ The singer-songwriter was able to detach the maker from the made. Should we do the same? Is it ethical? Even possible? These are the questions Claire Dederer deftly considers in Monsters, which puzzles through the problem of what we ought to do about great art by bad men.