I was going to question why so many people are surprised by a game with a clear rape tag, but you're right, it can be a bit misleading (At least up until the first scene, which is fairly early into the game). They still shouldn't be surprised by it. Isn't Alicesoft kind of known for rapey games? I thought they were, not sure if there are exceptions.
Beat Angel Escalayer, Daiakuji, Rance obviously.
Maybe you should avoid games with the rape tag then. Btw the reviews are supposed to be objective if you were considering reviewing the game poorly because you have an issue with a kink tag. Just tired of seeing "This game has rape/loli/whatever, 1 star" reviews, especially when the game is tagged properly. It's against the review rules to do that kinda crap x.x
The only thing I can come up with to avoid this from happening is separating rape into two categories, something like gameover rape and normal rape. But it seems like the type of people who are that against rape usually wouldn't be okay with it even being optional, so eh. You might be an exception but I'm not so sure if the rape happening to rando characters with scenes that can be skipped fairly quickly bothered you that much.