People aren’t “sensitive” to 3D movies due to lack of stereoscopic vision (That’s typical for people who were cross-eyed from birth for example, even if they had corrective surgery). Or they can see them and don’t care or don’t like the effect.
If you’re not “sensitive” to 4K, that would suggest you‘re not capable of perceiving fine details and thus you do not have 20/20 vision. Given of course, you were looking at 4K content on a 4K screen in a size and distance, where the human eye should generally be capable of distinguishing those details.