Yeah, a lot of what I said is just an opinion, I brought that up because the average player that doesn't know you or didn't read that may not get the message across,
My point was that yeah, the game is about not searching ourselves in others and to not try to change for them, but the main mechanic is doing that, and if you don't, you can't reach the ending, so you still have to try to imitate others to find yourself (if we don't count skipping the levels, that actually would be more in line with the message I think). Because yeah, you say we shouldn't try to change for others, but I didn't see the consequences of doing so. Just giving something to think about.
You say that we shouldn't find our existence in others, but we exist because of others, when we are kids we look out for our parents, we have idols, we have celebrities, we have superheroes, and not just people, every idea is born from others, not just divine revelation, and by holding Kant's ideas, you are trying to be a little bit like him too I believe.
Maybe the idea that you really wanted to touch was reason vs rationality but I didn't see that in game.
I could also be misinterpreting things so sorry if I'm wrong!
Don't worry about the state of the game too much, It doesn't have to be perfect and it's perfectly functional and good as how it is right now.