OK, so you admit that you are ignorant about relativity theory. This is refreshing. I agree that your failure to predict the perihelion shift of Mercury will not change that it was the first thing that Einstein did with a good approximation to general relativity and that it was what convinced Einstein that he was on the right track. While I thank you for having the refreshing honesty to reveal your ignorance, it is funny that you quote-mine here from Einstein while missing Einstein's central point that a fundamental part of judging the correctness of a theory is the theory's ability to derive the proper equation to describe a set of observations. So you seem to miss the point of everything Einstein wrote.