"Destroy this temple, and I can rebuild it in three days." This does not happen though Jesus says it to the high priest in court. Jesus is a human, and his body is what is destroyed and rebuilt in three days. His Jewish brothers think he is talking about their building. He knows this, yet he deceives them in direct contravention of the law. He breaks the law. Jesus lies to the high priest's face. To see this requires overlapping the gospels John and Matthew and looking at the command in Leviticus 19. Here is the scripture evidence showing Jesus breaks the law:
[Jhn 2:19 NIV] 19 Jesus answered them, "Destroy this temple, and I will raise it again in three days."
[Mat 26:60-63 NIV] 60 But they did not find any, though many false witnesses came forward. Finally two came forward 61 and declared, "This fellow said, 'I am able to destroy the temple of God and rebuild it in three days.' " 62 Then the high priest stood up and said to Jesus, "Are you not going to answer? What is this testimony that these men are bringing against you?" 63 But Jesus remained silent. The high priest said to him, "I charge you under oath by the living God: Tell us if you are the Messiah, the Son of God."
[Mat 26:62 NIV] 62 Then the high priest stood up and said to Jesus, "Are you not going to answer? What is this testimony that these men are bringing against you?"
[Lev 19:11 NIV] 11 " 'Do not steal. " 'Do not lie. " 'Do not deceive one another.
"Do not deceive one another," but Jesus does both in and out of court. This is only one item, and many other examples of slight of speech completely undermines the force of an argument like the one in the OP. We cannot rely upon words. A Jew may not lie in court, but Jesus does. As I see it this does not end Christianity, but it does rewrite it. It is not a fundamentalist movement. It is not a replacement for the Jews, and it is not a substitute for the Jews.
May God bless those who work to renew the world in peace and goodwill.