Liberal billionaire Jeff Bezos's behemoth online retailer Amazon is receiving fierce criticism after announcing it would no longer sell books that it says frame transgender and other sexual identities as mental illnesses.

Amazon announced the decision in a letter sent to Republican lawmakers that was obtained and published by the Wall Street Journal. Sens. Marco Rubio, Mike Lee, Mike Braun, and Josh Hawley had inquired why the online retailer pulled Ryan T. Anderson’s bestselling book, "When Harry Became Sally: Responding to the Transgender Moment," which has been characterized by the Bezos-owned Washington Post as anti-transgender.

REPUBLICAN SENATORS SEND LETTER TO JEFF BEZOS ASKING WHY AMAZON PULLED BOOK BY CONSERVATIVE AUTHOR

"As a bookseller, we provide our customers with access to a variety of viewpoints, including books that some customers may find objectionable. Amazon works hard to ensure customers have a great shopping experience, and access to the widest and most diverse cross-section of written and spoken word in retail today," Amazon wrote to the lawmakers. "We reserve the right not to sell certain content. All retailers make decisions about what selection they choose to offer, as do we."