The bozo says that amazon.com should refuse to sell a book that he [bozo] doesn't approve of. The book is titled 'Understanding Loved Boys and Boylovers by David L. Riegel
He argues with Civil Rights Attorney Michael Gross and Forbes Managing Editor Dennis Kneale.

Mr. Gross argues civil rights and Mr. Kneale argues amazon.com's right to sell a book that is not illegal/
The bozo argues that amazon.com does not sell the 'The Turner Diaries' or hardcore pornography, and he ends the segment stating that he is not advocating banning the book, but that customers should take their business elsewhere.

To his credit, after the segment, he came back to admit that he was wrong when he stated that they did not sell 'The Turner Diaries' because in fact they do sell it.

Question: How or why does the bozo know about these books?