The fact of the matter is that there is legitimate historical evidence for the Resurrection. Nothing about the aftermath of the Crucifixion makes sense if Jesus' body was not somehow meaningfully not in the grave, and if the Apostles did not believe something incredible had happened.
The Resurrection is true, and if it is true, why wouldn't you be a Christian? If Jesus is risen from the dead, then He is God indeed, and everything He said is true. Why wouldn't you follow Jesus, in light of that?