As someone who hates 24fps, because it looks way too jerky, and not lifelike, the sooner we lose 24FPS, the better.
I also think most jerkiness in 23.976/24 is due to incorrect display settings leading to dropped/skipped/repeated frames. If your display can match 23.976, even panning scenes look pretty smooth. It's the jitter that messes with our brains and looks bad.
It's not jitter that bothers me, it's the stop motion effect. It's especially bad with action sequences that have a lot of closeup shots.
This is basically every movie with any sort of action in the past decade or so. If you do closeup shots in on some fast action in 24fps you don't have to worry one bit about choreography, since it'll just be a choppy blurry mess and nobody can tell what's going on anyway.
I'd argue stylistically the lower frame rate works a lot better on a big screen. There's also the fact that high frame rates on a big screen seem to cause some people to get motion sick.
I personally have no issue w/ action scenes which are shot at 24fps. Yeah, there is a fair amount of blur but it all seems natural (at least on a cinema projector), and conveys the fast movement, even if it might not be precise.
Take Jackie Chan's Drunken Master epic final fight scene for example - yes it's a bit blurry but I can make sense of everything going on. If anything it enhances the feeling of action - if this was shot at 60fps, it would look much more "real" and be a lot less enjoyable.
Not sure how a camera would be built that could do this...
Hobbit's 48 fps version was not as badly received as you make it, though the unreal slow 24 fps shoot does give it more of a fairytale character.
Cinematographers have to pick particular aperture and ISO to get the depth of field and film grain they want, so they can only really adjust exposure though shutter speed. If you double the framerate, the minimum possible shutter speed halves. Therefore (unless you are shooting outside on a sunny day) it is very likely that your shot is underexposed, and the only thing you can do about it is add more lighting. This can be both logistically complicated and technically very hard to pull off without looking unnatural, especially in scenes that are supposed to be dark and moody.
Remember also that typically a 1/2 rule is followed where the exposure of each frame is half the time of its display. So for each of the 1/24s intervals, an exposure is made for 1/48s. A shorter exposure would have less motion blur but look jittery. A longer exposure would look too buttery. People are extremely used to 1/48s exposures displayed for 1/24s (or similar).
48fps video in the Hobbit movies was very negatively perceived. It looked too much like a video game.