We have seen Jesus so we know. We have seen the testimony of the disciples which show us no naturalistic explanation can account for the origin of their beliefs. We also know the universe always needs a cause by observing trillions of cause and effects in nature, and no hard evidence something comes from nothing, so we know the universe needs a cause that must be outside of itself, outside of time and space. There truly are trillions and trillions of causes. Just today, you could list at least 100 things that happened to you through the process of cause and effect.

Obviously nobody cared enough for their claim they saw Elvis alive from the dead since they didn't go check his grave or die for him, and with so many Elvis impersonators that hardly makes a good argument. You are getting sillier and sillier. If silliness was a good argument for your approach you may have something.

We know there is no possible naturalistic explanation to account for the appearances because all have been exhausted. We know they didn't lie because they went to their deaths with this testimony. People don't willingly let themselves be put to death for what they know to be a lie. And Jesus never had a twin brother, thus the person the disciples spent 3 years with could not have been impersonated when they spent time with him up close and personal after His resurrection, ate with, conversed with, touched and walked with. Even if Jesus had a twin brother, his persona would certainly not be the same. Magicians can use twins because the audience doesn't spend 3 years to get to know those twins' personalities, nor is the show that revealing about the twins. Do you see how atheists don't think things through? Very shallow. Hell is for the shallow. God expects more of you.

We know the Bible is not fiction because it has no fictional qualities like exist for fiction. It is entirely a biographical, autobiographical, letters written to certain individuals, logical proofs, prophetic and a book of spirit to touch your inner man. Since there is no evidence of fictional writing, that's not an option. When you add up all the corroborating evidence of first, second and third generation apostles who knew each other, set up churches together, that would just be too many people literally have to be lying for your grand conspiracy to be true.

That's why almost no scholars go that route. So we can say enemy attestation concedes this fact which gives evidence for the Bible.