This is not at all most of the USA. Most of the USA isn't actually stupid and wouldn't do this. Welcome to the late baby-boomer/early gen x, where they are raised to be like this.
This is a person who is not educated and who is afraid. She does NOT know what she is talking about. She is an ignorant person. They were making fun of her and that's their right, but they could have told her that she was being loving stupid and she would have probably went away, feeling embarrased.
I hope she gets a bit of a lesson when this comes back to her. Maybe she'll learn not to use her religion to spread hate. Jesus was middle eastern, and she's just being a little bitch.