I've said this before but. For this year's phrasing..
Personally, I dislike a number of American things that seem to have made their way to the UK. These include McDonaldism and CocaColaism. I also feel that that the trick or treat that I'm uncomfortable with is also American...
I've never got that while we lap all these others up we don't seem to take to Thanksgiving.
Or maybe some of us do in a different way? I'm not sure I've thought this way before but how close is it to say our harvest festivals where one might sing "we plough the fields and scatter"?