(british) - literally no one ever has called it soccer here.

From Wikipedia:

The rules of association football were codified in England by the Football Association in 1863. The alternative name soccer was first coined in late 19th century England to help distinguish between several codes of football that were growing in popularity at that time, in particular rugby football. The word soccer is an abbreviation of association (from assoc.) and first appeared in English public schools and universities in the 1880s (sometimes using the variant spelling "socker"). The word is sometimes credited to Charles Wreford-Brown, an Oxford University student said to have been fond of shortened forms such as brekkers for breakfast and rugger for rugby football (see Oxford "-er"). However, the attribution to Wreford-Brown in particular is generally considered to be spurious. Clive Toye notes that "they took the third, fourth and fifth letters of Association and called it SOCcer."

So, yes, literally a lot of people used to call it soccer there, so much so it was taught in schools.