Have you heard of the Eunuch Archive? There are many more people there who desire castration, penectomy, and a small subset that want SRS without actually transitioning. Check it out.
Also, to those who think that SRS is an absolute holy grail only touchable by someone who wants the whole feminizing package, have you ever heard of the mangina man? He's someone who did have SRS, and yet retained a completely male body otherwise. (NSFW if you ever look him up. And if his existence or his name offends anyone, I'm sorry, but I feel like it's wrong to not acknowledge that there are some people in the world who want surgery but do not want to fully transition.)
Whether this desire is actually right or not, unlike in trans women, we don't have a study for it to confirm it or deny it, so I can't say. But I can confirm that it is a desire that some people have.