Read the first two damn lines of your link bro. Of two kind, a trap is male but acts female. Of two kind, a femboy acts female but is again male. Someone who is trans has been both male and female, so again of two kinds. Once again, toboys look and act male but are female. OF TWO KIND. Futanari literally, again in your link to wiki, have both male and female genitals. Tiddies are not genitalia, as they are not reproductive organs. To be futa you need both a vagina and penus, as they are the reproductive organs of both genitals. Technically testicles would also be necessary as they make sperm, but those are not always there of course. By definition, again, futanari literally means of two kinds, as shown in the fucking article you linked trying to disprove me, therefore disproving a good 90% of your arguement. Now, have some links and go fuck yourself.
https://en.wikipedia.org/wiki/Futanari
https://www.dictionary.com/e/pop-culture/futanari/
https://www.definitions.net/definition/futanari
Oh, and so you dont piss yourself, the definiton of genitals as well.