The worst books on science history, art, politics, etc.
you've had the misfortune to read?
Hollywood versus America, by Michael Medved.
Granted, I didn't agree with Medved's politics, but
I thought it was badly written and full of
internal contradictions- one section argued that violent
Hollywood movies were causing violence in the
US- then a few pages later Medved stated
real-world violence in the US was declining!