Что делать, если учитель сына сказал, что Санта не существует? Жесть какая-то, срочно нужна помощь!

My son has been in his school for 5 plus years from kindergarten to 5th grade never had any issues but his strings teacher is going to have that school see me act a fool. It’s on sight with that man!! That man told my son Santa isn’t real. I’m seeing red, I went to the school and was like who’s this man?? They said he’s not here today and will email him but that’s not enough for me I don’t want my son in his class anymore this situation is all it took. I texted his special education teacher and she said don’t worry I got it and I know she does. Told my husband the situation and that if we ever see this man I want him to give him the dirtiest look he can give, let him know we don’t like him lol.