The amazing thing would be that, in three waves of about half a dozen years each, Amazon would have completed a total transformation of the U.S. publishing and bookselling business. (Only the third wave, of course, has been strictly about ebooks.) And for better or worse, that transformation is a game-changer in every sector of publishing and bookselling activity including, of course, the activities of authors and readers.
And who is to “blame” for this?
The stupidity of the Big Six (soon to be Four), period.
And Bookish remains in perpetual private beta.