I'm not blind or daft and I recognise that British shoppers were part of the cause of the eventual downfall of British industries in the latter part of the 20th century.
The question now is that whilst we have plugged the hole whereby non EU citizens were able to come here for low paid jobs, there is still a torrent of Europeans arriving here having already secured British jobs including low paid ones, such as advertised on the EU site:
Wanted: Coffee Shop Assistant ; Senior Supervisor - Subway ; Kitchen Assistant ;
https://ec.europa.eu/eures/main.jsp?...ntCategory=482
Here's the home page for job seekers:-
https://ec.europa.eu/eures/home.jsp?lang=en