I’m trying to understand what you’re proposing here, so I have a few questions.
3d interference pattern of gravitational waves would create rogue waves at specific points in SpaceTime that would create matter and the CMB.
What is the source of these gravitational waves? Binary black hole mergers, neutron star mergers, something else?
How would rogue gravitational waves create matter?
How would rogue gravitational waves produce the cosmic microwave background?
Creation of matter and gravity fields, at net zero energy would increase the expansion of the universe.
What do you mean by “net zero energy”? Is it that this process of creating matter and gravitational waves would also conserve energy somehow? How would this increase the expansion of the universe?
The perfect black body curve of the CMB would result from the exponential expansion of the universe.
How does the exponential expansion of the universe produce the black body CMB? In the standard big bang model, photons are emitted during the recombination epoch and have a very uniform black body temperature since the matter that emitted them had been in thermal equilibrium prior to expansion. These photons are then extremely redshifted by the expansion of the universe.