there is also loads of witness and circumstantial corroborating evidence that [Jesus] was resurrected
You have no evidence of resurrection of any kind apart from hearsay reported by anonymous sources (maybe just one who was the source of that claim for all others) of unknown character, intelligence, or agenda. I can't imagine weaker evidence for an extraordinary claim.
Vampires are entirely fictional so are not comparable.
Vampires are very comparable to gods. Make a list of all things you consider nonexistent fictions and you will find that gods are indistinguishable from what you call nonexistent.
Offended or not by the comparison, your evidence for gods is no better than the vampirist's evidence for his beliefs. Neither can be ruled in or out. For the empiricist, who needs compelling evidence to believe, that means unbelief in both.
So the ten commandments are neither true nor meaningful and you're cool with murder and adultery etc etc..?
The Ten Commandments are meaningless to me. That I happen to share some values with them is meaningless. The proscription against murdering, lying, and stealing are nearly universal in human culture with obvious societal benefit where they are observed.
And I don't care about adultery except to say that it's not for me or my wife. If we felt otherwise, then we would engage in it. And though I consider it dangerous if you're doing it secretly and betraying one or more people, and I have no respect for that behavior, I also don't mind if people choose to go that route - a nice example of me NOT getting my moral precepts form that or any other holy book.
You won't understand unless you take the time to research the history of the Bible, and accept that the supernatural exists.
There is no reason to believe that the supernatural is a thing. The idea is incoherent. Is it causally connected to nature? If so, it's another aspect of nature as yet undiscovered as the world of bacteria, DNA and subatomic physics once was. If not, then it cannot affect our world or our experience of it, making whatever you are thinking of irrelevant whether it exists in some sense or not.
Supernatural is a linguistic invention and sleight-of-hand to warehouse the nonexistent in order to explain why it/they can't be detected while simultaneously claiming that denizens of this realm can and do modify our reality, which of course would make them detectible through that effect. That's the incoherent (internally self-contradictory) part.
Can you explain how all these different men wrote the prophesies that came true (apart from those yet to pass) centuries before the events?
Many of those prophecies are too nonspecific to say that any actual event in history corresponds to them. Some are too mundane to be impressive. Some have been deliberately fulfilled after the fact by people who knew these prophecies.
Psalm 22:12-19 Many bulls have compassed me: strong
bulls of Bashan have beset me round. They gaped upon me
with their mouths,
as a ravening and a roaring lion. I am poured out like water, and all my bones are out of joint: my heart is like wax; it is melted in the midst of my bowels. My strength is dried up like a potsherd; and my tongue cleaveth to my jaws; and thou hast brought me into the dust of death. For dogs have compassed me: the assembly of the wicked have inclosed me: they pierced my hands and my feet. I may tell all my bones: they look
and stare upon me. They part my garments among them, and cast lots upon my vesture. But be not thou far from me, O LORD: O my strength, haste thee to help me. The Truth scripture is verified in the exactness of fulfilled Prophecy.
Here's nice a nice example from seven posts above this one on the same page that I presume you offer as an example of precisely fulfilled prophecy judging by your final sentence and the words following that which you offer as exact fulfillment. Sorry, but that's what I mean by nonspecific. It could be applied to a riot or a rodeo or a battle in a war from any century. It can be said to describe Cersei's walk of shame in Game of Thrones. It could describe somebody being in the middle East being stoned to death or the death of George Floyd or Giovanni Bruno.
Such is nonspecific prophecy. It's a verbal Rorschach test. It shows the susceptible whatever it is that they want it to show.
In discerning the evidence and arriving at an answer from a historical and prophecy fulfilled perspective you have to realize that in the case of Christianity that it is actually part and parcel of the Jewish faith.
Not to the Jews.
There could have never been a Christian faith without there first being a Jewish faith. They are inextricably linked.
That's also true of Islam and Baha'ism, also faiths worshiping their versions of the god of Abraham.
So yes, Christianity is a spinoff of Judaism, followed by Islam then Baha'ism. We could say that Judaism was Happy Days, Christianity Laverne and Shirley, Islam Mork and Mindy, and Baha'ism would then be Joannie loves Chachi. The spinoffs all owe their existence to the original.