I think it helps to give a name to the concept, and then do a better job of educating people that this is basically a placeholder name until it's better understood. (and yes, I realize that is not an easy task, might be easier to find the solutions and figure out the best name)
Right, I'm not sure there's one unifying theory that you could bundle it under, not sure what the right term is for a general concept rather than a hard testable theory. But that just further proves the need to stop calling it one thing in particular, because it leads the vast majority of people (including scientists!) to think that "dark matter" is some big unifying theory, when there is no such thing as some singular substance called "dark matter".
