We blame the victims, because we mistakenly believe the world is fair and just so the victims must have done something wrong to deserve their suffering.
Psychology of the Bad Times is a beginner book for sociology and psychology in the time of unrest and social movements, and it's also a book banned by the Hong Kong public libraries, a city where this book was originally published.
You ask why? It's because learning and telling the truth is banned by most dictatorships out there.