I don't know, man. I agree with the whole "this isn't something i want to watch, but i can't turn away" thing. I feel like that when watching The Exorcist. But with that, there's an unsettling atmosphere that helps build the scare factor.
with "Inside", i didn't turn away because i couldn't handle it. I turned away because i didn't think it was scary. What i saw didn't frighten me. It offended me. And horror films shouldn't offend people, atleast not the way this film does. What purpose does a crazy dude beating a pregnant woman in the stomach with a nightstick really serve? To scare someone? I'm sorry, but where i find the basic story of "Inside" to be an interesting one, the extreme gore levels are uncalled for, and isn't scary. It's stupid and ridiculous. I guess it's supposed to be "shocking" or something. But it's not scary.
To make someone unsettled is something missing from horror, i agree. But making films like "Inside" is not the solution to bringing it back.