Snake Featherston
Banned
But doesn't that precisely point to Jesus as being unique? He was pushing his claim to be the messiah just like everybody-and-their-brother; but people actually believed it was true for Jesus, and in a very lasting way.
Sure many other after him were very important in the spread of christianity, St. Paul for one, and indeed Constantine's official sanction of christianity eventually made it the prominent religion in Europe.
However, I think your point that many claims to being the messiah fell flat just go to show you that Jesus was a unique personality, able to say the right things at the right time and strike a proper balance between conservative and charismatic; of course being martyred helped things along. Really though, I have to question if another individual would have been able to become the focal point of the world's largest religion.
I suppose I don't know enough about it to make a strong claim. Just thinking out loud.
Only in the sense that he succeeded where other claimants did not. That there were other claimants means equally some other (as Jews of the time would have seen it) heretical Messiah wannabe winning is not at all out of the realm of plausibility. Given how Jesus was less instrumental in the spread of his own religion than Paul, another Messianic claimant could just have easily had another charismatic second-founder of the religion that shifted it. The Early Modern Sabbateans actually illustrate how Christianity was not even a unique phenomenon in Jewish history, as does the Bar Kochba Revolt. And even then Christianity did not rise until it could use the full power of the Roman state to propagate itself.