Halloween in America is a purely secular holiday, a time of partying and festivity and spooks and scares, very like the old harvest festival/welcome to winter celebration it was in the old pagan era before the christian missionaries swiped it for its PR value.
another thing:
>in 1863, Lincoln proclaimed the last Thursday in November as a national day of Thanksgiving.
>Franklin Roosevelt set it to the next-to-last Thursday (in order to create a longer Christmas shopping season).
>Public uproar against this decision caused FDR to move Thanksgiving back to the final Thursday two years later.
>in 1941, Thanksgiving was sanctioned by Congress as a legal holiday, always to fall on the fourth Thursday in November.
'sides... Easter Sunday is a floater, too, so there's no bloody excuse even on a religious basis.
Point being: "Holidays" are flexible animals.
I can see NO reason this cannot be pursued.
I just don't know how to go about doing it.