If you had a hollow earth, would gravity pull you towards the center of the sphere? Yes. I believe gravity would be highest at the center, so anything other than a singularity would feel tremendous gravitational pressure at the center.
So the question is would that pressure be any different in a non hollow earth? I don’t think so. Or maybe I am wrong? Would the center be an “anti” gravity peak effectively repulsive? Are objects attracted to the center of mass even if the center of mass is not in the mass?
At every point in the sphere the force vector due to gravity is the sum of all force vectors acting on it. At the center are all the vectors add up to 0. Is this correct?