"with how much he attacks them"
dang that was quite the attack that the dev did. She definitely got uber mad at this person for being an idiot.
But besides that, it's quite literally an optional choice you can make. If you don't want Addison to be non-binary, then don't select that option. Simple as that. I don't see why anyone would feel the need to mod that out of the game, when you're literally not forced to choose that option.
There's also an optional gay scene, where if you deselect every possible love interest, the MC will choose Darian, and you'll get an ending. Would people mod that out as well? You know, the optional scene, where you literally have to choose to fuck no one. Do you* think that's "super PC", having variety in your porn game, and not having a game that does the same thing every time? You can literally make Addison female, and have only straight sex with everyone, and you're* mad that people have the option to not do that????
*mainly the first guy who got triggered over "non-binary", but you're also lumped in because you're defending them