I recently played through a game that used pedophilia for its shock factor, to show you just how bad the villains were. I mentioned in a review there how I dislike playing games that heavily feature pedophilia, regardless of the overlying message.
This game is similar, in that it uses something morally wrong (in this case, flagrant racism) to tell a a story. There are effective stories you can tell about racism, but this game uses unchallenged racist terms and ideas, leaving the player to make their own conclusions at the end.
I do believe the author intends this piece to have an overall anti-racist message. (spoiler for ending) (Spoiler - click to show)Your character turns out to be the true monster, and what seemed hideous monsters attacking him, saying things he couldn't understand, were soldiers of the race he hated. But that's only after we spent the rest of the game with characters saying things like (Spoiler - click to show)'all Asian women are ugly', 'mongoloids', 'sub-human'. It's like when an acquaintance repeatedly insults you but says 'just joking!', or back-handed compliments like 'I completely disagree with all your friends who say that you look like a hideous pile of cow pies'. It felt over the line, for me.
Overall, the game was polished. The only interactivity is choosing which memories to remember, and you don't have time to remember them all. I did experience an emotional reaction to the game.
When I play games, I immerse myself in the protagonist. And this is a protagonist I do not wish to identify with.
My 3 stars represents my overall rubric: polish, descriptiveness, and emotional impact.