Jesus was not executed for blasphemy. The punishment for blasphemy is stoning according to Leviticus 24:16, which is the fate that befell Stephen in Acts 7. Jesus is executed by crucifixion, which is the punishment Rome gave to those who challenged Roman authroity. We also know from non-Biblical sources that other "messiahs" claimed to be the son of God, and at least one Pilot let live because he thought they were just crazy—not a threat. Check you facts and then come back to the adults table, where scholarship and research matter.