This is unofficial censorship by the bookseller. I suggest you write to the local Barnes and Noble managment and the national management complaining about this and use the word ‘censorship’ so they know how seriously you consider it.
I know there are conservatives in SF because that’s where Michael Savage is based, so there must be a market for the book. There is no excuse for only having one copy on the shelf, unless the book is nearly sold out.
By the way, how’s the book?
Booksellers are allowed to do that. We are allowed to patronize other booksellers. That’s called Capitalism.
There have been many, many complaints. This is not new. They will do it now, and they will do it again. The book will still be a top seller. The market will be sold on the internet. And this Barnes & Noble book store, typical of all the San Francisco Bay Area, will continue to hide books in this manner, because they are political police, and the Left wants to police the people, and the minds of the people, and what the people should see, and what they should be told, and most important of all - what they will not be told.