There's a Dr. Seuss story that addresses transgenderism. In the book "The Sneeches and Other Stories", there's a character who builds a machine that can transform the sneeches from one type to another, if they're not happy with the way they are. The story later appeared in the animated series "Dr. Seuss on the Loose" Sylvester McMonkey McBean appears and offers the Sneetches without stars the chance to have them with his Green Star-On machine, for three dollars. The treatment is instantly popular, but this upsets the original star-bellied Sneetches, as they are in danger of losing their special status. McBean then tells them about his Star-Off machine, costing ten dollars, and the Sneetches who originally had stars happily pay the money to have them removed in order to remain special. However, McBean does not share the prejudices of the Sneetches, and allows the recently starred Sneetches through this machine as well. Ultimately this escalates, with the Sneetches running from one machine to the next. This continues until the Sneetches are broke and McBean departs a rich man, amused by their folly, and says to the audience "you can't teach a Sneetch". The narrator then comments that ultimately McBean was wrong, for the Sneeches soon learn that star bellies nor lack of stars cause inferior nor superior status, and they soon all live on the beach as one group.
That story was about anti-Semitism. “As Seuss told Jonathan Cott, The Sneetches “was inspired by my opposition to anti-Semitism.” Seuss had skewered the Hitler's rampant anti-Semitism in several of the political cartoons he published in PM during the early 1940s.” https://www.lib.latrobe.edu.au/ojs/index.php/tlg/article/view/765/710
Yes, I believe that was the original intent. But there's a different interpretation to this story that hasn't been noticed before. Just because a story was originally about one thing does not mean we cannot take another message out of it. The sneetches were unhappy and thought if they had a star on their bodies it would make them happier. Transgender people are unhappy and think if they have a penis on their body, it will make them happier. Just like there were sneetches without stars paying to get a star, and sneetches with stars paying to remove the stars, so true is the case with transgender. There are people without a penis who want one, and people with a penis who do not want one. And they're paying a lot of money to undergo these "transformations", and it's kind of ridiculous. You have some transgender people who change their mind, just like the sneetches, on again, off again. You could read into Dr. Seuss's story the message "Be happy the way you are"