As
@Cypress and I have discussed, Jesus wasn't on the cross until he rotted. He was up there for an afternoon. With the Sabbath beginning at sunset and Jesus appearing to have already died, TPTB allowed his body to be taken down and entombed.
Despite his wounds, it's possible for a human being to survive such abuse and "rise" from the grave even if he died later from infection, which would explain why he disappeared after meeting with his disciples.
For primitive people, it would be a miracle that he "rose from the dead".
The Apostles spread out across the region preaching about Jesus and the budding religion of Christianity. Many of them died for their beliefs including St. Peter who was crucified upside down by Nero since Peter felt unworthy to die like his lord. Such devout beliefs are strong indicators that they saw what they thought to be a miracle, the resurrection of Jesus.
I'm a big believer "results count". People can say whatever they like, but results count. If the results aren't there, then it's just so much hot air. The results after the crucifixion and "resurrection" of Jesus are well demonstrated by the actions of others.
Anyone who claims the entire story is a fabrication is simply the flip-side of those who accept the story as a miracle. The middle way is to look at the facts and determine if it was possible for Jesus to survive the crucifixion...and it appears it is for the reasons mentioned.