I agree on some things, and others I think you're just not justified.
Its been a while, but I'm pretty sure on the NTR version of that beach scene Max tells Rita that she can fuck as many cocks as she wants, as long as it makes her happy. So thats what she's doing. They never establish anything like "Max has to be present or give permission every time". I dont consider that to be NTR. Plus Rita is a porn director, so it's not like she puts much value in having casual sex.
There's another plotline that I do consider NTR, but I'm not gonna spoil it since you're not there yet. However that doesnt really matter, its not like the dev is claiming his game doesnt have NTR. The switch is not called "swinging" or "sharing", it's the "NTR" switch. I just think its silly to have the NTR switch on, and then complain there's NTR in the game. Yes, the first chapters let you choose for each scene individually, and that was the better solution, but now there are entire plotlines around steve and who he fucks, so it would be impossible to have continuity that way. Now if you had the NTR switch off and had trouble with the content, that would be another discussion. One that has happened at least a dozen times on this thread.
What I do agree is that in games like this, that constantly try to outdo its depravity, the characters are often totally lost, and become just "generic slut #X". Even characters I liked, like Laura and the mother, I don't find myself caring much about anymore. Thankfully, it seems the game is wrapping up. Currently I'd be more excited for a part 2 remake than whatever is happening next.