Nice claims, but you're not addressing the point here. You can see with your own eyes, in the Cavendish experiment, attraction between masses that has nothing to do with density.
Discussion
Electrostatics is a real, verifiable thing. Get a vandergraaff and start making things "anti-gravity"!
Electrogravitics is very interesting and real, yes. But it proves nothing in relation to your "density" theory.
Gravity does not depend on density, and I proved it to you. Why do you keep ignoring evidence that contradicts your theories?