GW is way passed the threshold for scientific consensus for it to be taken seriously. Before anyone can demonstrate convincingly that is false, it is the working hypothesis we need to use. I am not saying it is proven beyond any doubts like Evolutionary theory, but it appears to be quite a strong argument.
There is no point to argue that the theory is wrong because not 100% of scientists agree with it, what you need to do is to find the next Michelson-Morley experiment. What you are trying to argue here will not convince anyone anything.