There is a cosmology that unifies charge and gravity based on the exact opposite, which would be a universe of shrinking matter and commensurate growing force. In fact, a famous quantum physicist Paul Dirac first proposed the Dirac large numbers hypothesis in 1937, which set the ratio of the size of the universe to the size of the atom to the ratio of charge to gravity force.
However...if outcome matter shrinks and forces grow, this would explain why precursor galaxies are red-shifted and explain why distant galaxy spectral line splittings do not change. In fact, it means that our reality is actually changing very, very slowly and it takes literally hundreds of years to measure the change...or much greater precision than current measurements provide. However, very soon high precision measurements will be able to measure these changes. Such measurements will show neither string theory nor quantum loop gravity nor supersymmetry nor multiverses are valid. In fact, string theory can never be disproven because it can explain anything...therefore string theory has no predictive value.
The notions of outcome matter shrinking and force growing are consistent with quantum cause and effect of the precursors and outcomes of both gravity and charge and so does represent a unified theory of everything. However, the universe is then first of all a quantum causal set where there are many possible outcomes to any given precursor. A quantum causal set universe is not then determinate, unlike Einstein’s relativistic gravity in macroscopic time and space.
While we normally think of time and space as a preexisting backdrop for matter and action, in a quantum causal set, matter action outcomes are the result of precursors without time and space. In fact, time and space both then emerge from the family relationships of precursors and outcomes along with the extra entanglement of quantum phase. Both matter and action have relative quantum phases that are also important for determining outcomes from precursors.
Time then emerges from electron spin period and space emerges from electron charge radius and electrons, protons, and neutrons and the entire universe is made up of discrete quantum aether particles. There are then only two constants from which all other constants emerge; the mass of a discrete aether particle and the action of that same discrete quantum aether as the matter-time Planck constant.
The Planck constant is the proportionality between light’s frequency and its energy and is the basis of our physical reality. Max Planck derived light’s quantum to explain why microscopic charged matter of electrons and protons did not behave like macroscopic charged matter. The matter-time Planck constant is likewise the proportionality between aether frequency and its mass as energy. In matter time, just as in Einstein’s relativity, energy is proportional to mass times the speed of light squared, E = mc².
With matter action, time and space emerge from aether action: time from aether spin period and space from aether radius. This makes discrete aether action consistent with both gravity relativity as well as quantum charge, but now as a discrete aether quantum causal set. All other particles emerge as aether condensate outcomes and constants as aether precursors and in particular, the cosmic microwave background surrounds us with the light of creation precursors. Creation was the condensation of a certain very small fraction of precursor aether into the 2.7 K microwave, electron, proton, and neutron outcomes of all of our atoms today. Each atom today exists as a result of the emission and action of light at the CMB creation.
Gravity emerges from the collapse of aether at the scale of the universe and charge emerges from the collapse of aether at the scale of the atom. An electron has a spin magnetism that couples with its orbit magnetism in each atom to give a spectral splitting. Even though electron mass shrinks, its spin increases just as the electron orbit spin also increases.