Similar things that are now said about 3D are very similar to things that used to be said when sound was introduced to film. And when color was introduced.
And the several other times when 3D was introduced to film unsuccessfully 😄
Sound and color don’t bother, nauseate, or distract a large portion of movie-goers. Whether or not 3D in its current form is here to stay to some degree, it’s not going to be ubiquitous or the default movie experience. Color and sound probably took some getting used to and accepting, but anyone who has issues with 3D at this point is probably not just unaccustomed. It’s been around for a bit now.