Social science is, at present, divided into a bunch of different disciplines, all pretending their particular branch of human behaviour can be understood quite apart from everything else. (Well, some of them *cough*economics*cough* seem to think everything else is just a variant of their own, but that’s a different story.) This is the model for academia at the moment. Economics, political science, sociology, anthropology, psychology (to an extent). Then you have historians raiding the whole lot to build their funny little narratives about the past.
I don’t think that’s workable in the long run. What’ll happen instead I have no idea … but it’ll hopefully be interesting. And it’ll hopefully be built on well-grounded and empirically defensible theories.
The other sort aren’t really worth thinking about.