>>17936
Don't go hauling inconvenient reality into our fantasy fetishism, now.

Anyway, hormones and plastic surgery are quite powerful things, as demonstrated by real life ladyboys who still have their full package. There's such a thing as chemical castration, and RL TGfolk typically run through a course of everyday-life transition based entirely on synthetic hormone treatment and other low-level cosmetic adjustments before a surgeon's knife goes anywhere near them.

In any case, we're starting out usually from the base of a herm/futa rather than a full male (except for the few traps or chopped obvious-males within the catalogue), so that's already a break from reality, and essentially we're taking an already feminine-figured (and minded) character that happens to have male equipment and… removing some of it.

I mean, even in cases of full surgical sex transition, there's a limit to how far you can go. Unless you actively disrupt normal puberty and supplant it with that of the opposite sex (and even somewhat if you do), the replacement hormones and removal of the original complement doesn't do a great deal for the skeleton - including facial structure, hips, hands, etc - and only a limited amount for musculature and fat deposition. Often there's quite a lot of actual cosmetic surgery needed to pass completely with ease, and anyone who looks really closely at the "tell" points like figure or hand/foot structure will still realise something's up.

tl;dr it's just not that simple, and whilst there's a grain of truth in what you say, leaving/removing the nads doesn't have as fundamental effect as might be expected, especially in combination with (or despite) the interference of modern medicine.