Wasn't Raidou's moveset highly revamped during DoA Dimensions into something very unique?
My mom was a victim of rape so forgive me for not being exactly "thrilled " at the idea of including him in the roster.
Aww

That's quite a dire situation, it must have been hard for your mom, I'm sure having the love of her family helped her recover from such an awful act.
Sometimes people isolate themselves so much and end up being alone, and that makes it only worse to get past the event.
I knew something about that on myself, sadly, but let's cut that I don't want to talk about myself.
I apologize if I seemed untactful handling such a delicate matter and I absolutely had no intention to ridiculize what your mother and other people had to go through.
But at the same time you have to understand this is not some educational documentary or a complex symposium about the aftereffect of raping.
It's just a videogame, you have to discern fiction from reality and tell them apart.
Otherwise it would be the same as all those bigots who say people shouldn't be playing GTA5 because it makes them violent and take up guns and commit atrocities into schools killing their own schoolmates etc.
You get the rest.
This is just a videogame and it's meant to entertain people.
DoA in particular is a fighting game and as such it doesn't really put emphasis on the plot like maybe another game genre would be.
If anything the rape that Raidou did is only a narrative instrument used to fuel the characters' (and the players') rage unto him for the atrocity he perpetrated on the poor defenseless Ayame.
I don't think the game takes the act of raping lightly or promotes it in anyway.
It doesn't seem to me reason good enough to demand a character not to be present into a roster. It's just a fictional fighting game after all, not reality, and it doesn't have the pretention of educating anyone about anything, especially about rape.