OK, I'll leave out Adams and state with confidence that there is more historical evidence to support the historical Jesus than there is to support the existance of Alexander the Great, Hannibal, Julius Caesar, or Cleopatra. By a magnitude of 100.
Please note that the original contention was that there was more evidence for Jesus claiming to be equal with God (which led to His crucifixion, the best attested event in all history as far as I can tell) than for John Adams being the 2nd president. It wasn’t originally over the whole historicity of the life of Jesus versus the whole historicity of John Adams, which is a straw argument that has been added. For that, my position has been labeled “psychotic”.