Maybe the teacher is traumatized. There's a Messianic Jewish woman (Jewish believer in Jesus) who hated Christianity because when she was a young woman, the Nazis grabbed her baby boy and threw him out the window to his death. She said they had belt buckles that said "In God We Trust" and she said if that is their God, she wants nothing to do with Christianity ever. They sent her to a concentration camp and above the doorway was a sign, "This is your punishment for killing Jesus". Sid Roth (sidroth.org) wrote about her story in his book Time is Running Short, but there are other similar cases.