You haven't watched the Food Network lately, or Anthony Bourdain's show, or the Andrew Zimmerman Bizzare Foods, have you, chas...?:d
Britain is coming back! We always DID have a great cuisine, but it went away for a long time, as post war kids got used to supermarkets and pre-packaged foods (as we did in the US, too).
OTOH, just like Cajun cuisine, often the best of British foods are things that today's more squeamish consumer doesn't really want to know what's in it! Blood suasage, fresh game, artisan cheeses, bread you can't believe... and don't get me started about the seafood and shellfish! So I feel a very strong connection with Cajun food and culture, growing up in the farmlands as I did....
But yes, just like the US (apart from great regional cuisines), food had got pretty bland from England in the sixties and seventies, on the whole. But that is why we love foreign food so much! There's an Indian restaurant on every corner, great Greek and middle eastern food, Chinese is still better over there than all but the best places here, and I'm sorry to say this, but the best pizza I ever had was in Clacton in the UK! Hand tossed artisan gourmet pizza, wood fired ovens and toppings that are only just getting trendy over here... all in the early seventies!
We aren't just Wimpy's (a sort of really BAD Burger King!) and fish and chips, you know!