This premise is totally without foundation.
The closure of pubs is due almost entirely to the seismic shift in drinking and socialising habits in the space of one generation.
One generation ago, the pub still enjoyed its status as a gathering place for local people to socialkse for an evening. It was a hangover from the days when most people almost never socialised or ate out, so the pub was the social community hub.
One generation on, and drinkikng habits have altered out of all recognition. Now, young people - and they remain the majority of social drinkers - drink in order to be drunk, they are not interested in socialising.
Exit the cosy local pub, enter 'vertical' bars where most of the seating has been removed because analysis shows that people drink more if they stand up. Add the ear-shattering music, and the notion of socialising has gone.
Factor in the rising costs of alcohol, combined with the cheap supermarket availability, and you have an entirely new pattern of drinking.
People meet in the early evening at a friend's house, and imbibe a fairly serious amount of supermarket alcohol, they then head for the town centres and disco pubs and late bars where they continue drinking until the early hours.
The notion of an entire evening in the same pub with the same people week in week out is utterly alien to them - those days are gone, and will never return, and that spells the death of any pub that does not provide cheap food - something our parents and grandparents would never have dreamed of.
As for the Labour government extention of opening hours to mimic the 'care culture' of Europe, only a London-centric bunch of chinless wonders could have dreamed that such a notion would work - and of course, it didn't.
Is there any notion of immigrant drinking habits in this explkanation?
Obviously not - they did not feature in pubs when they were all open, they don't feature now that they are closing.