Warren Ellis tells
Newsarama why his novel is set in
America (emphasis mine):
Why set it in America? Well, aside from the rich comedy purposes, it can
be said that from a certain perspective America is the experimental petri
dish of the Western world. America remains an astonishingly good idea --
and those rights held to be self-evident, that had never ever been written
down before and which shaped every Western revolutionary society and
republic that followed...it's those freedoms that turned the country
into both an engine of innovation and an inarguable nuthatch. That's
always worth studying.