I just spoke to someone at the Amazon Customer Service site (800--201-7575) who said that he apologized and a request had been submitted to reverse this new policy. He just kept repeating, "We've heard from other people who feel as you do, and we sincerely apologize."
Of course, they didn't apologize when I called them a year ago to complain about their shoddy treatment of independent and small publishers. They were--and still are--requiring small publishers to use Amazon's proprietary book printer BookSurge to get favorable placement on their website.
Unless we as consumers respond with our wallets to big business' bad behavior, they take no notice.
I'm glad to see readers everywhere uniting to oppose this very sneaky form of censorship.