The point is she had no RIGHT to do this. It was NOT her business, and she had no authority to do so. She is messing with OTHER PEOPLE'S decisions about their children.
"From reply #1
1) what public school is doing by promoting Santa Claus is promoting a form of religion; that 2) religion should not be promoted in public school; 3) a teacher should not be required to promote a religion in public school; and 4) the lesson plan requiring me to promote Santa Claus was imposing religion on me, not the other way around."
IF Santa was only a custom people would not be getting so upset.
People are getting upset because you are supporting the point of view that substitute teachers can and should adopt the role of the parent. If a substitute teacher, or a real teacher for that matter, told my child I was a liar, I would be having a very heated discussion with the teacher, the principal, the superintendent and the board of education.
Explain why this substitute teacher has more authority over these children than their parents do!