Building/creating would occur instanteously or as a fast a a wrecking ball can destroy a structure.
Destroying on the other hand would take many many many generations.
The builders/creators would always have a job. The destroyers might well die out from frustration that their only purpose in life would be to string it out lengthen it out stretch it out delay it?
I know that realistically practically due to limitations of physics et al that could not occur.
But WHAT IF?