If you actually think that Santa is Satan, keep in mind that Santa is fictitious. Thus, I encourage you to reflect for a moment on the clear and obvious implications of that undeniable fact. Since Santa does not exist, and Santa is Satan, then Satan does not exist, and you are now an apostate, siding with Satan. Have fun with that!
Notice how the Oxford English Dictionary defines it:
Old Nick: an informal name for the Devil.Thus, Old Nick is not Saint Nicholas. Different people with the same name.
– ORIGIN mid 17th century: probably from a pet form of the given name Nicholas.
