@franklinhu , thanks a lot for your detailed comments !
I tend to agree with you , to the extent that the "Einstein worshippers" have built an unholy cult around their own interpretation of Einstein's papers . Einstein himself was a brilliant theoretician (though not an experimentalist like Tesla) and quite honest in his approach .
It is also true , that when Einstein wrote down his equations for the theory of relativity and derived his world famous E = MC^2 , he was 100% correct , mathematically speaking .
If I and some others in our group believe Einstein's theory will one day be disproved , it is not because his equations are wrong .
**Einstein developed his theory 100 years ago , when we didn't have the powerful telescopes that are available today , to verify facts about our universe . That was his major handicap .
So , like any other scientist , he had to make some baseline assumptions , to build his theoretical framework . That is where the chink in his armour lies . If Einstein were alive today , he would certainly have corrected the flaws in his theoretical framework , basis of the astronomical data we have today .
Broadly speaking , the 4 baseline assumptions for Einstein's theory are :-
There is no ether , as "proven" by the flawed Michelson Morley experiment - rebutted many times
Universal Gravitational Constant "G" is a constant throughout the Universe , at all times - basis of the highly faulty Cavendish experiment . Rupert Sheldrake has punched holes into the concept of a Universal constant "G"
Laws of thermodynamics , especially the second law - of entropy , that chaos and disorder keep increasing in the universe - several violations have been proven , not just in the formation of stars and planets , but in the existence of all living organisms .
Speed of light is a constant and is the cosmic "speed limit" in our Universe - this statement has been disproved , basis of numerous observations , regardless of the frame of reference . Mainstream science has made immense efforts to suppress and manipulate this fact , but they won't be able to keep the lid on it forever .
So , because all 4 of the baseline assumptions of Einstein's theory are flawed , I believe his theory is flawed , it's at best an incomplete understanding of the Universe .
The Plasma/Electric Universe theory is much more robust in explaining our Universe , without even resorting to extremes such as Black Holes , dark matter and dark energy - the way Einstein's framework describes them .
Anyhow , this is my 2 cents on the subject of Einstein , though I fully respect the opinion of those who support his theory .