Agreed. I have a read a lot of social/political theory and I am sick of this language. These are academic/philosophical tropes presented as if they were scientific findings. Even when the ideas are interesting, the Theoretical baggage gets in the way and the result is at best clumsy and at worst insufferably pompous.

I try to make a habit of gently reminding academics I know how badly this gets in the way of communication with non-academic people and ends up hindering the transmission of their ideas. To be honest, I think quite a lot of academics wind up communicating this way because they're subconsciously looking for positive feedback from their colleagues and so slip into the abstruse language of the classroom without realizing it.