I've lived here for 45 years and never, not once, have I ever heard anyone hankering after the days of Empire.
What did those days mean for the average British person, after all? Squalor, misery, hunger, poverty. Being turfed off your farm by some aristocrat or mill owner during the enclosure acts / land clearances, and shot if you tried to protest. Herded into mills, mines and factories, working six or seven days a week, and very often not being paid in actual money, but scrip to be spent at the company shop. Maimings / poisonings in industrial accidents, after which you had to beg on the streets to survive.
No voting rights, unless you were one of said aristocracy. Rammed into tiny houses, often living one family to a 13ft square room. Workhouses. Illiteracy and ignorance. Rampant disease. Early deaths, especially amongst children. No rights for women.
No thanks.
I suppose some of the barking mad aristos / industrialists long for the days when they had the working class as their slaves, and let's face it, they're trying desperately to set that back up again, but the rest of us think those were the darkest days the ordinary people of this country ever suffered through.