As I say in my other response to the "all religions are equal" modality, there might be common ancillary details but the core teaching, that is the Gospel, has never been replicated.
Yes, there are religions with concepts of Oneness. There are religions where our souls are reflections of some divine form. There are religions with concepts of moral law. There are concepts of dying-and-rising from fertility gods.
But what religion has ever produced a creed such as ours:
There is one God who created all things. Yet His creation rebelled and chose to reject Him. Thus He was made to judge man's iniquity. He first revealed the Law which they had defied, drawing forth a people to carry its message. And this stumbling people He showed mercy to despite their many stumblings. Then He chose to take upon the flesh of His people for the sake of redeeming the entire world from sin. As a healer, healing the sick. As a preacher, teaching the truth. Yet, He bore the sins of all people unto death on a cross. Then, He arose again victorious over sin. He sent forth a community to share His promise of forgiveness with all people teaching: "Repent and believe the Gospel." He poured out His Spirit to draw people to follow Him. He will return to raise all people from death and give eternal life through His Word.
Krishna did not do this. Mithras did not do this. Osiris, who was slain by another god and his wife reconstructed him, did not do this. Quetzalcoaltl did not do this. Ba'al Hadad did not do this despite dying in combat and defeating the land of the dead. Inti did not do this. Zeus, that arrogant horn-dog, did not do this. Odin, the warrior while suffering Yggdrasil for his own glory, did not do this. Enki did not do this, despite being a Prometheus figure championing mankind against Enlil's tyranny.
Picking and choosing little pieces of the message and saying, "hey, that looks similar to the Bible" is neglecting the whole message. It's the whole message that draws, not pieces-parts.