How is there weight without gravity? Weight is the force of gravity acting on a mass.
I dunno, I've tried, but you're simply not addressing the main point that gravity works and the theories (GR in particular) have successfully predicted phenomena that had never been seen or measured before.
You have absolutely nothing until you can offer an explanation for that.
General relativity may well be an approximation, just Newton's theory was an approximation to GR. The explanation may even change (as it did Newton to GR) but denying that gravity exists is more absurd that thinking the earth is flat.
This is simply untrue (and I'm not going to just repeat the explanations endlessly).
An interesting example, where Newtonian Gravity diverges from Einstein's GR, is to consider a large mass body like the sun. In GR, space-time changes as we go from the surface to the core of the sun. In the core, space-time is most contract; space contracts and time slows. The center of the black hole has time running real slow and space is contacted to a near point.
In terms of energy and matter, and Newtonian gravity, the core of the sun is where the physical and measured distances between matter, contracts the most, due to the pressure caused by gravity. This direction of Newtonian distance parallels the direction of space in GR. However, the vibrational frequencies of matter and energy in the core of the sun are the fastest, meaning that the time parameter, used to express matter and energy speeds up, opposite to the time reference direction of GR; time slows in GR.
In other words, in the core of the sun, where fusion occurs, we get the most energetic matter and energy; gamma rays, where wavelength is most contracted and frequency is fastest; clock ticks the fastest, even though GR says that reference time should be getting slower as we approach the core. Distance goes in the same direction, for both, but time goes in the opposite direction for each.
Newtonian gravity is more consistent with the phase behavior of matter and energy under gravitational pressure. These phase diagrams of matter-energy are absolute; laws of physics are the same in all references. While GR is more consistent with reference affects, that are not absolute, but relative to observer. This divergence in time can lead to misunderstanding, in terms of what is observed by a relative reference GR, versus what is real and tangible for matter.
GR is more about sitting at a distance observing and inferring from the changes in the light we see. Newtonian is about getting in the trenches, close and personal and using more than just sight. We also need to touch. Distant observation, using only sight; energy inferences, does not have to touch hard reality, but infers everything based only on sight. This can lead to energy balance problems and mythology.
To put it another way, say we knew nothing about the tangible properties of matter, as a function of pressure. For the sake of argument, say Newtonian was not yet invented. Instead GR comes first, in terms of science, many decades before Newtonian thinking. Using only GR, we would not predict the proper core properties of the sun, due to the divergence of time. We know this to be true, only because Newtonian came first, This was already worked out in tangible experiments even before GR was mainstream. Since GR is now assumed to an updated version of Newtonian, so it is retired, the up and close touch of Newtonian is not being used, as we go further and further into space, since Newtonian is assumed an obsolete GR. Nobody seems to notice the divergence in time that has been lost.
This relative reference error is propagated into universe theory, due to the GR assumptions of relative reference, that ignores the divergence of time inherent in gravity and tangible things; matter. The net affect is relative reference physics violates energy conservation to create mythology that uses misappropriates energy.
