Why do you worry so about other's children? Belief in Santa Claus is temporary and it could be said that it lasts until the beginning of the end of one's childhood.
Why are you so eager to take the joy from the heart of a child? What's next, stealing the roast beast? I recommend that you sit down and watch "A Charlie Brown Christmas", in particular the part where Linus explains, "...and that's what Christmas is all about Charlie Brown."
And please, let us not make this another faux fight as you know as well as I that you don't mean a great deal of what you would say and I have no desire to riddle you with words and phrases that men lesser than you would have to look up in Mr. Webster's book.
You are better than this and to be honest, I wish to be.