However, if his existence as the Messiah is so clear and indisputable, there would today be no Jews - just Christians. Needless to say, there wouldn't be any other religions either. It comes down to a matter of will. Christianity, aside from being based on historical events, has some uncomfortable implications that many people do not wish to accept. Only the most primitive of man's religions are not based on historical events.
All religions have uncomfortable implications.
However, if you truly believe in the central tenets of the religion, the implications are either just details or tests of your faith. Islam is a good example of this. Muslims think nothing of these tests. Most Christians feel put upon to get out of bed on a Sunday morning to go to church. Muslims do not pay lip service to their religion.