You're absolutely right. Nobody's experience is any different! A majority of games you play follow a linear story that does not change at all to the player's decisions. This is very much by design, and just because you don't like it doesn't make it a terrible game. Start Survey wasn't even intended to be considered a "game" in the first place, but rather as a short story about a man who realizes that all his choices were programmed, and that he is, in fact, the UI of a computer.
The jumpscare isn't why I consider it a horror game. I consider it "horror" because it's like The Twilight Zone. In fact, I spent a good deal of time studying the story structure and methodology of The Twilight Zone before writing my script. The horror isn't in the unsettling room, or the visions you see in the dark. The horror is found in the deep philosophical implications of whether or not free will exists.
Also, contrary to what you said, I poured far more love and effort into making this game than most (if not all) of my other games. This is a story that I've been wanting to adapt for a long time, and I finally have the skills and opportunity to make it. People's opinions on the game, good or bad, do not define the amount of time, care, and detail that I tried to put into every corner of it.
I understand why you don't like the game, and I think it's a valid reason to not enjoy something. However, rather than providing constructive criticism, which I would have respected quite a lot, you blatantly bashed me and all the people who have enjoyed Start Survey who have supported me and given me real / helpful feedback.