Yes, unfortunately you're also incapable of putting 2 and 2 together.
I have already shown how you are incorrect by pointing out that we have methods of ascertaining values of g.
G varies with mass, not volume. As observed, measured and verified.
What you are incapable of understanding is it matters how much volume of three dimensional space the mass of the matter occupies. If you have the same mass of matter occupying two different volumes then the gravitational force at the surface of the matter occupying a smaller volume is greater than the gravitational force the same distance from the center of the mass of the matter occupying a larger volume.
The reason for this is at the surface of the smaller volume there is less aether within the volume. There is more aether displaced from within the volume. The force exerted by the displaced aether toward the surface of the smaller volume is greater than the force exerted by the displaced aether the same distance from the center of the matter occupying a larger volume.
Force exerted by displaced aether toward matter is gravity.