Woah, someone gave my favorite AVN a 5/10, time to do some defense. (Use paragraph breaks next time pls!)
First, if that's a 5/10 I'd like to see the AVNs that you rated better and (if possible) are completed games.
I'm no fan of the MC's actions in the early game either, he's highly manipulative. But he does get a lot better over the course of the game, that's character development, right? And if you really don't like it, you don't need to stay on Carla's and Rebecca's paths. OIALT is not like Eternum, there aren't huge exclusive segments dedicated to one love interest.
About the Yakuza thing... it was hard to watch but the whole decision had "bad idea" written all over it. I think the consequences could've been way worse for Lauren. Still, it was very dark and I'm not sad that we won't see this kind of thing ever again. You mentioned Stormside, I love that game but I never had the guts to see what the slave routes entailed, the description of it kept me at bay.
And what do you mean there's "no consent involved" at Rebecca's wedding scene? She does agree after some teasing. Overall not good enough for real life standards, but for porn standards this is more than fine.