Correct. And now you know that Katie is crazy enough to do that, you can control the MC to not do that if you want to. You, as the MC, have the choice to not go that crazy. If you consider Katie as more important, then be willing to be as crazy as her. If you consider it's too crazy to do, then don't do it. It's pretty straight forward.
Think about it like IRL. You like this girl, you've gone on dates a few times with her, then suddenly she told you that she wanted to do revenge porn to her ex-bf and wanted your help. Do you help her out or not? If you really want to bang her, you'd help her. If you feel that it's wrong and not something you can do, then dodge the crazy lady. It's completely in your hands of what you do.
The fundamental issue here is that you're trying to split the paths into "Gentleman" (points) and "D-bag" (no points). While in reality, the paths are "what Katie likes" (points) and "what Katie doesn't like" (no points). Your inability to separate the two is becoming a problem because you're trying to fit a square peg into a round hole and be upset that it didn't fit.
With all due respect, it showed that you haven't been paying attention to the story. Yes it's very different, but this revenge during the party has been mentioned and planned since very early on in the game. This revenge/party was Katie's main plot story. We just didn't know how far it would've gone to. This is by no means a radical shift, nor signal to a new direction. This is something that happened because it's Katie's main plot (up to that point). Episode 9 with Jenna being the focus would have nothing to do with being a douche because the plot for that is not about being a douche.
Of course it's sexual assault. What else would you consider a woman grabbing a guy's junk if not sexual assault? Reverse the gender, and this is Donald Trump's famous line "Grab them by their pussy".
Again, it clearly showed you haven't been paying attention whatsoever about the story. Monica is not a "landlady" or a "step-mom" to bypass Patreon because there exist the actual step-mom in the storyline. The main story plot is also about the mysterious email that Monica received though the MC didn't send it.
It's interesting how one can be so disgusted by revenge porn in a video game, but completely be okay with incest to the point of considering something as incest even if it wasn't intended to.
Yes, but we've established that interaction with Katie would give you points if you do what Katie likes. What Katie likes isn't necessarily just you being a gentleman. Their relationship has always been full of lewd jokes, and I wouldn't consider spanking her at the gym as being gentleman-ly either. Same deal with trying to touch her specific body parts when putting sunscreen on her.