Resurrection observed by more than 500 eyewitness. And they were not squid or octopus.
Excuse me, but what alternative Bible are *you* reading?
According to the usual Bible, no one saw the resurrection, and at most a couple dozen people (the disciples, and a few women) saw someone who might have been the return of Jesus, but by the Biblical accounts not even his closest disciples were immediately convinced that the person they saw after the crucifixion actually *was* Jesus ("they knew him not"). And there are unresolvable discrepancies in the four different accounts of the alleged resurrection.
That's a far cry from an ironclad case.
There are hardly "more than 500 witnesses" as you say, and the few that did supposedly see it weren't all convinced, and don't have a consistent narrative of it.
Finally, there's the issue of how anyone can be sure that the written accounts are even that of actual eyewitnesses, and not a tale written long after based on fables, histories garbled by word of mouth, or stories crafted to gain followers.
Finally, fully 3000 eyewitnesses watched Harry Blackstone Jr. make an elephant vanish in a puff of smoke. Should we worship him too? What people think they see is not always the same as what actually happened.
This is not to say it didn't happen, or that there might not be other reasons to believe in it, but let's not pretend that some ancient written accounts constitute some kind of indisputable evidence.