What you don't seem to understand is that the basic theory of gravity still works. It simply needs other matter that doesn't interact with light (except through gravity).<quoted text>
Your computations of star movement and etc are in error. That is why you now have dark matter, dark energy, and black holes.
The stars have been moving, as have the planets, and the galaxies, totally ignorant of the way they are supposed to.
Evidently they missed something in their development of the theory.
A very confused idea of what actually happens: single charges produce a Coulomb force that is stronger than gravity and also an inverse square force. But the forces from opposite charges tend to cancel each other out. For most matter (and this includes plasmas), the number of positive and the number of negative charges are the same (or very nearly so), so the net effect is that the force from the charges is very small.Gravity works between particles. Take away the balance of charge in an atom, and you increase the EM range of it. The sucker get unbalanced and starts reaching out. Only stronger than gravity does. BTW, this imbalance also reaches to the nuclear forces.
Atoms don't 'emit' charge. An atom with unbalanced charge will produce a Coulomb force. For *ionic* bonds, this is the main thing keeping the atoms together (although the repulsive forces from the other electrons is part of what keeps the atoms apart--again, a balancing act).A neutral atom doesn't emit the charge an unbalanced one does. This is the sort of thing that makes chemistry.
My notion of electricity is charged particles in motion. For electricity in wires, that tends to be from moving electrons 'kicking' new electrons. But the actual motion of the electrons in the wire is very small. Much more relevant for energy transfer is the energy of the fields (as opposed to the particles).Your perception of electricity is a charge being passed within matter based upon a loosely bound electron KICKED out of a perfectly harmonious relationship and forced to find another. It's a bit more complicated than that.
We know how gravity works. Adding in E&M on a cosmic scale doesn't solve the problems of the background radiation, of galactic motion, or universal expansion (or even the appearance of it), etc. it is a failed theory because it doesn't agree with the evidence.Gravity as portrayed sucks. It really pushes.