Hillel the Elder vs. Jesus

[Aoi Magi]

Hillel. Born in 110 BCE. Notable sayings include:

"What is hateful to you, do not do to your fellow: this is the whole Torah; the rest is the explanation; go and learn" - Hillel

Jesus:  “So whatever you wish that others would do to you, do also to them, for this is the Law and the Prophets." Mathew 7:12

Is this evidence that the Jesus figure was a compilation of other figures with more historical reliability?

No.

Christianity as a religion has demonstrable influence and has borrowed ideas from other religions, and this trend is common to all popular religions. But that says nothing about the historical authenticity of Jesus as a person. The historical Jesus might've existed as a crazy doomsday preacher, might be an amalgamation of many preachers of the time, or a complete figment of imagination... it's almost impossible to say it with any certainty, however, the biblical miracle Jesus is very much an embellished myth.