if you aren't allowed to investigate or speak about one of the boogymen our society waves in our faces, a smart individual might begin to wonder why;


This doesn’t look like extremist hate speech to us. Judging from these blurbs and titles, it looks like pretty balanced and fair discussion of a very serious, and vehemently disputed, allegation.
The first one in the list below even presents both sides of the argument in an attempt to get to the bottom of who is telling the truth. 
Why are some people so afraid of a fair and open discussion?
These books were banned from Amazon in March of 2017, but are easily available online at other sellers. Take a look at the blurbs describing these books. They are an eye-opener...........https://russia-insider.com/en/history/amazon-banned-these-9-academic-books-questioning-certain-aspects-holocaust-why/ri26511