Oh, he isnt, there is no doubt. Not just because I say so. Our people have considered the messianic claims for 2000 years and the NT claims still do not meet the requirements of Messiah ben David. No, christianity makes a Jew a meshumad, no longer part of the Jewish people. They have the right to return and their souls are Jewish but they are not "Jews".
Gentiles have not been added but will be in the messianic age. You are not grafted in. That is a Pauline lie.
As to your questions, yes to them all. Jacob did not "wrestle with God", he wrestled with an angel. G-d does not take human form. That is a Grecco-Roman myth. I most certainly have recieved the best blessing from Hashem that any man could have. I, thanks be to the Holy One Blessed be He, left Mitzrayim.
Tell me in your own words what requirements these are.
You may have left Egypt, but how many of the adults of Israel that left Egypt ever made it into The Promised Land? Just two, Joshua and Caleb. And how long did it take the people of Israel to make that relatively short journey? Forty years. You may have made it out of Egypt, but not yet into The Promised Land.