> The U.S. was born out of Puritanism.
That reminds me: apparently, the Puritans have actually managed to ban the celebration of Christmas and other church feasts in the Britain during the English Interregnum (An Ordinance for Abolishing of Festivals, June 1647):
Forasmuch as the Feasts of the Nativity of Christ, Easter and Whitsuntide, and other
Festivals commonly called Holy-Dayes, have been heretofore superstitiously used and
observed Be it Ordained, by the Lords and Commons in Parliament assembled, That the
said Feast of the Nativity of Christ, Easter and Whitsuntide, and all other Festival
dayes, commonly called Holy-dayes, be no longer observed as Festivals or Holy-dayes
within this Kingdome of England and Dominion of Wales, any Law, Statute, Custome,
Constitution, or Cannon to the contrary in any wise notwithstanding
> Talk about the war on Christmas!
Not just a war on Christmas, but an actual war too: this led to a whole bunch of Christmas riots throughout England, including Canterbury's famous "Plum pudding Riots", where rioters ended up sacking the mayor's house and taking over control of the city for weeks. The whole of Kent ended up revolting after the rioters' trial, essentially starting the Second English Civil War.