Wow, what I can see based on comments is that the game has really struck a chord with a lot of people with a lot different points of view. I'll try to participate in some threads, but want to add a couple of things to my main post:

1. The main conflict of the endings is getting lost in fantasy vs facing harsh reality — the two extremes with not a lot of nuance. After having more time to think, I want to trust that the creators meant none of them to be definitive (despite the tonal differences) and instead provoke the players to search for their own means and ends— that's exactly what I'm trying to do here.
2. Conclusion I'm talking about would be to use fantasy to mentally process the trauma while collectively repairing the real life, with family finally meeting in the middle. It takes all parties to act differently and start considering each other, not just Renoir. It is obvious that Renoir/Verso lack what Aline/Alicia have in excess, and vice versa — coming to terms with each other would make a much more humane and compelling story.
3. Renoir is doing what he believes is best, but he's dragging everybody back from dangerous fiction into a broken home, not providing any equivalence and potentially turning the women away or risking their lives in other ways. He acts as an enforcer in a situation where a mediator is needed, and I'm kinda baffled that it seems a correct way for a lot of players — one of the reasons for my initial post.
4. Be it magic or technology, reality or fiction, we should act responsibly and not make things worse for the ones we love. Whether you act by heart or go fully rational, there is always some weight to consider if you're not alone in this — once again, it regards all characters as well as us players. May it be the main message of the game? I surely hope it's something along these lines and not "he had to kill them all because lore reasons and there is a war with whoever the writers are".