I don't know. How could I know what is in his heart and mind? To assert I did, whould exhibit not only hubris, but my own insanity.
I suspect he really believed he was who the scriptures claimed he was, putting aside the resurrection leap of faith, which came after the Christ's corporeal existence was extirpated. Very charismatic men sometimes believe that. It is particurlaly a viable hypothesis to me from one with a revolutionary and seminal message, that moves the human condition forward with an ethos of kindness and civility and pluralism. Without that ethos, the rebirth of the West, and particularly the Enlightenment, could not have occurred. The lights would have been kept off for far longer than they were.
Look the only people that can "blame the Jews" are those that do not believe that Jesus was the Son of God sent for the very purpose of sacrifice. You cannot blame anyone if you truly believe that both the Romans and Jews that actually took part were only a means to an end. I can understand Jew's unease because they look at Jesus as a "very popular human" not as the Messiah so they logically fear that someone will blame them for murder. To a Christian there was no murder there was a resurrection. The modern western anti-Semitism is not religious at all how could it be? The hot bed of modern anti-Semitism is most prevalent in Europe, which has become almost completely secular and VERY anti-Israel.