Jesus was a knew invented god modeled after Serapis, if fact his cult was the start of Christianity. They added elements of other gods like Dionysus and Mithra to the mix to gain followers. Serapis was already a mix of Egyptian and Greek gods and they just took it a step farther with Jesus. Most of Christianity is modeled after the Egyptian religions
From a Trinitarian perspective, I would agree with 'some' of the above.
From a non Trinitarian perspective, Jesus /Yeshua fulfilled all the prophecies foretold about the coming Messiah. Many eye witnesses saw Jesus and the miracles he performed. Christianity could never have spread so quickly in the first century given the impact he had made during his short life here on earth.