Even Einstein failed to find the equation which would unify the forces though he tried all his life. So far, all others too have tried and failed. Perhaps it's a failure of their imagination. They all seem to be trapped inside their own paradigm. There may someday be a breakthrough to solve the gravity conundrum; it will probably be something so simple, so obvious that they can't see it even if they're looking at it now. I agree with you. Gravity is not what they think it is, it's not how they think it is.