It is the 'English' language, after all!
I'm not sure that that's altogether true any more, Tom.
I live in a non-English speaking country, but I'm surrounded by English everywhere I go; very little of that English originated in the UK. Examples abound.
The largest supermarket chain in Thailand (Tesco) is actually British owned, yet outside every one of their stores is a sign proclaiming it to be a 'supercenter' (note spelling)
When I top up my travel-card I'm invited to 'Have a Nice Day' by a talking machine.!
I find myself watching 'movies' and visiting shopping 'malls'. I say 'skedule' instead of 'shedule', etc etc
I'm not trying to say that this is good or bad - it's just simple, straightforward fact. Since the end of World War II, American culture (and with it American language) has 'gone global'.
A few days ago, kids in England (and probably in Australia too) were running round shouting 'Trick or treat?'. School-leavers in UK now have 'prom nights' - although I don't think they've quite got round to 'Homecoming Kings and Queens' yet. Give it time.
I've long accepted that when non-English speakers tell me that they want to learn English 'because it's the world language', it's American English they mean, not British. So be it - it's true, it's the way of the world.
I've no problem with standard American language - American Literature was one of my specialist subjects at university many years ago -but I will, of course, continue to query baseball terms when they turn up as 'common' on Chi, along with foreign words (from Spanish, Yiddish or any other language) that gain 'common' status through being part of regional American dialects!
MK