In Diamond's personal club scene she's on drugs. In Rae's scene where Diamond and GF show up nothing is mentioned about drugs.
And I find nothing that matches your claims of the term changing. Shemale, dickgirl, and futa are still all their own specifics. Made, born, and has both genitals.
Last time you and I had this argument you actually broke down with"Because the devs said so", which is where that part of my comment came from. Something like "It's their world, so they can name it futa if they want".
Even if it isn't, lol.