Reading all that reminds so much of the protest another person and I jointly made against publication of Pat Brown's "profile" of Madeleine McCann on Amazon.
At least in name, they have a procedure you can use to register a complaint against any published material that you think might be untoward. Between us, we quoted extracts from the profile that were plainly libel and got back blanket responses from Amazon that they could not be expected to check the content of all work that is promoted for sale on their site and they would do nothing.
A short time later, Carter-Ruck intervened and the whole lot was whooshed.
These organisations (some of them) take money for providing goods or services without the slightest heed to the credentials or standing of the goods or services they allow third-parties to promote or sell.
You must love whooshing any adverse opinions! I find what you did totally despicable and shows that you do not believe in freedom of opinion, especially when it concerns your dear beloved devious duo of parents. What you did is nothing to be proud of.
If you did not agree with what was written, all you had to do was point out the "errors" out in the review section, which would have been much more effective than just making the book disappear. BTW, I read it and did not find anything libelous in Pat Brown's kindle book. I would be interested if you would please let us know what exactly in the book could have been considered libelous.
If the McCanns felt that the book was truly damaging, all they had to do was hire a lawyer in the US and sue Pat Brown. However, since freedom of opinion is highly regarded there, they probably wouldn't have gotten anywhere. So that's why they sent their henchmen, Carter Ruck, to threaten Amazon.