You clearly state that the motivation for your theory is to revive ether, IMO not to debunk GR.
Not really. My initial motivation was to solve some, whatever, problem of modern mathematics or physics. Then I have found something which allowed me to tackle one quite famous problem of modern physics, namely the quantization of gravity, in particular the so-called "problem of time". So, the motivation has been to develop a quantum theory of gravity which gives, in some classical limit, GR.
So it was, indeed, nto to debunk GR - but only to modify it, as much as necessary, to get a quantum theory of gravity.
You do not mention anything uncomfortable about GR either in your motivation or in your main paper, while claiming your theory an alternative to GR.
There is, of course, the problem that GR cannot be quantized. This is a quite uncomfortable fact for GR. And, once an ether theory on a fixed background does not have all these quantization problems, I would expect a preference for my theory, once people recognize that it exists.
You know very well that peer reviewed publication is the first hurdle, but real success is wider acceptance and you cannot wait for GR to die before your theory gets acceptance. You must demonstrate the superiority / flawlessness of your concept.
Yes, but there is nothing I can do about this. It is one of the rules of scientific publications that to republish something already published is not supported. This was a quite reasonable rule in the past, where it was possible to read everything published in the own specialized domain of research. Today this is impossible, and so my theory can be easily ignored forever, without any reasonable counterarguments being proposed.
I will be abrupt to get a better grip of your concept.... You propose flat spacetime and you claim Gravity as stress / distortion of a compressible entity which has density (defined differently..thats ok) and is called ether (or any other term), so primarily you are creating a force field which is non existent in GR, which is simply the distortion in the spacetime geometry. Once a distortion is created in the materialistic ether then light is not expected to traverse this distorted path, it will follow the Euclidean straight lines, suggesting that you have gotten over with the concept of geodesic / spacetime curvature etc.
No. Light is a wave in the ether (as well as all other fields in the SM and gravity). So, it does not follow straight Euclidean lines, but is influenced by density, velocity and pressure of the ether.
I still do not get the convincing argument about the relevance of flat spacetime (other than providing a space for ether) in your theory once you propose gravity as the stress in the ether. In the sense your Gravity is absolutely independent of background space.
The real problem solved by the background is quantization. You need a parameter t to define the Schrödinger equation $$\frac{d}{dt} \Psi = H \Psi$$. This parameter is absolute time of the background.
One point is that the Newtonian background provides Newtonian causality, in a fixed, matter- and gravity-independent way. In a quantum theory of gravity, the gravitational field has to be uncertain. This makes Einstein causality, which is defined by the gravitational field, uncertain too. Uncertain causality is no causality, but fixed background causality does not have this problem, thus, causality can be defined in quantum gravity.
Another point is local energy and momentum conservation. Via Noether's theorem, this is closely connected with translational symmetries in space and time. So, with absolute space and time we have a translational symmetry of the whole theory in space and time, which gives momentum and energy conservation laws, in the usual way, with local densities.
Your theory will also debunk the concept of Gravitational Waves, they will be more akin to Gravity Waves as the ripples in your ether media.
Certainly not, there will be gravitational waves. In fact even more that in GR - but the additional waves simply do not interact wtih matter, so, they are purely "dark matter" waves.