No, it's you who failed to engage with the other commenter's arguments, or failed to understand them. They made the correct point that the famous "banned books week" also typically celebrated, and continues to celebrate, books that were not literally banned according to your definition. Thus this rhetorical extension of "banning books" to cases where books are not literally made illegal to read has a long history, and both detractors and defenders; reading the wikipedia page on Banned Books week is a good way to educate yourself on that history.
In the case of Dr. Seuss books, the near-simultaneous decision of the copyright owner to stop publishing them and of the largest online reselling market, eBay, to forbid selling and buying them, makes them, if not literally banned, vastly more inaccessible than many many other books that have been covered under the Banned Books Weeks event, written about in the media, celebrated by liberal readers (in those prior ages where liberal readers thought that right to read was more important than right to forbid) and so on. Your narrow-minded insistence on literalism is just a way of displaying your ignorance and unwillingness to engage with these difficult questions.
In the case of Dr. Seuss books, the near-simultaneous decision of the copyright owner to stop publishing them and of the largest online reselling market, eBay, to forbid selling and buying them, makes them, if not literally banned, vastly more inaccessible than many many other books that have been covered under the Banned Books Weeks event, written about in the media, celebrated by liberal readers (in those prior ages where liberal readers thought that right to read was more important than right to forbid) and so on. Your narrow-minded insistence on literalism is just a way of displaying your ignorance and unwillingness to engage with these difficult questions.