The similarities between Krishna's life and Jesus' life are so startling that it's often difficult to tell where one begins and the other leaves off. That's why it's important to remember that the Krishna legend was around a full 1000 years before the gospels emerged. The only conclusion a rational person can reach given the often exact same matching details of each is that the gospel writers borrowed heavily from the Krishna legend and other dying/rising gods as they constructed their own legend of Jesus. Here is but a few in a laundry list of similarities
Yeshua and Krishna were called both a God and the Son of God.
Both were called Savior, and the second person of the Trinity.
Both had adoptive human fathers who were carpenters.
Jesus was conceived by a god. Krishna was the reincarnation of a god.
Both were killed by piercing--Jesus by nails and a spear, Krishna by an arrow
Both resurrected.
This list is not exhaustive. It would take up too much space to list Jesus' similarities with all the dying/rising gods before him--Zalmoxis, Dionysus, Horus, Mithra, Romulus--who inspired the gospel writers to copy them.
Instead I want to mention a few details of Krishna's birth that convince me Jesus is an amalgamation of many other earlier stories.
Kamsa, the evil king ruling the land hears a voice from the sky predicting that a child will be born and will kill him. The king is terrified. He orders all the children born to his sister, who is the one who will give birth to the child, to be killed. But with the help of an angel the parents of the future child escape and flee to a faraway land. There they give the baby Krishna to a carpenter and his wife to raise.
Anyone who cannot see the parallels between this and the Jesus legend involving the prophecy of Jesus, Herod and the flight to Egypt for safety has to have blinders one. It's too exact to be coincidental. One can only conclude Matthew borrowed Krishna's story as a model for his own account.
It becomes clear that the Jesus story is just another legend based on many earlier legends that were floating around the area at that time.