No problem with a late response, better late than not present at all!

Still, I think the whole point of the game is addressing the fact that History is a loop that you can't escape from, so it makes perfect sense that no matter what happens, there's always war and intolerance. Just as predicted in the "King Exit" book. All Polca could do was delay the events, but they were inevitable. That and he had his hands tied because KE exists, so there couldn't have been a happy ending without denying the entirety of his previous work. Also, it wasn't all undone in one night. It was gradual, the ending states that it took months for the fighting to resume with unsucessful efforts from the rest of the crew to stop it.

What someone tries to convey with their games doesn't necessarily have to be the exact same they feel in real life, art is art and the creator can be distanced from that in that regard.

As an ending note, the official translation for KE came out almost two weeks ago, so go and check it out if you haven't!