BackFire
Without the belief in the resurrection the Christian faith could not have come into being. The disciples would have remained crushed and defeated men. Even had they continued to remember Jesus as their beloved teacher, his Crucifixion would have forever silenced any hopes of his being the Messiah. The cross would have remained the sad and shameful end of this career.
Christianity hinges on the belief of the early disciples that God has raised Jesus from the dead. The disciples had nothing to gain by starting a new religion. They faced hardship, ridicule, hostility, and martyr’s deaths. In light of this, they could have never sustained such unwavering motivation if they knew what they were preaching was a lie.
Despite everything stated, your probably still skeptical, and that's fine. It's natural to question accusations and demand evidence. Continue doing so, but study material thwarted by subject matter experts, not philosophy. Let the facts speak for themselves.
Pretend for a moment, that you and I were sitting next to each other in a New York subway waiting for our scheduled train to arrive prior to work in the morning. In the effort to kill time, we engage in small talk. More so, my mood takes a hard left and I begin to relay to you that I saw Ronald Reagan the other day, who has been dead for about 6 months now. Before I could finish my sentence, you'd label me mentally unstable and feel that rooms with padded walls would best suit me. You'd feel that way because you are well aware of the natural affliction called death. In so, you do NOT take me seriously.
Ancient times were no different. People were well aware of death, and to hear stories of Jesus Christ rising from the dead must have been ridiculous, unless there was proof of course. Knowing this (to include all the Christian martyrs) there must have been a supernatural event. Only, and only a supernatural event would guarantee the life of Christianity. Lies have a short life span, and damned if I'd ever die for one.
I doubt they would too.