Obessively deconstructing is to destroy

Why “deconstruction”? Why steadily the need to “deconstruct”, just to deconstruct?

Wouldn’t it be better to, at least, deconstruct in order to construct something new again - by adding new elements or putting the old ones in a new order? To deconstruct for a purpose and not just... because there’s nothing else to do - or because being the subject to things you cannot or couldn’t control in the past makes you scared for some bizarre and vague reason?