"To be fair" is a misnomer, I don't know how many other countries you have spent any time in AB, whilst I agree that English, Welsh and Scottish enclaves in Spain have imported their, often not very great cuisine to areas where they live, I totally disagaree about other countries not being "precious" about their culture or even just celebrating it. In France the French tricolor flag is very much in evidence, similarly in America the Stars and Stripes are all over the place. In fact I can't think of anywhere I have travelled to in either the northern or southern hemisphere whose culture isn't visible, most countires have a nationalistic pride for God's sake it's not perculiar to the British. I think we should also bear in mind that that most cultures, including newly arrived ones here will import their food, it's human nature to want to hang on to a bit of the old country when you are far from home.
I know my grandfather trawled the few continental shops that were around in the twenties and thirties and beyond until they became more common looking for garlic and olive oil which were strangely exotic then.