There's something called 'a willing suspension of disbelief' and in this instance, it means if you don't at least temporarily accept the premise of a horror movie, it may gross you out but it won't scare you.

I think this has a lot to do with what you find scary. Most horror movies don't scare me at all, unless they're really well-done body horror or home invasion films.

watch the original fly with jeff goldblum and you will change your tune

I've never found them scary. Not even when I was little.

Horror movies do require cooperation but some of them don’t deserve it!

None of the ones you mentioned are actually scary

horror movies are not longer scary, unless you are living it

The only thing that creeps me out is marionettes

Your life must be scary enough as it is