In terms of why the UK’s such a hotbed for this stuff, I think the underlying reason as others have mentioned is that abolition of the welfare state which existed pre-Thatcher. Both in the sense of a lost future, but also because that memory lines up very neatly with the nostalgia everyone feels for their childhood: seeing things pre-1979 as an entirely different time, both Edenic and a bit sinister.
I’d be interested to learn how anyone younger than 30(ish) views the genre of hauntology/wobbly British electronics. I was saying to someone last week (discussing Gerry Anderson SUPERMARIONATION series’) that there’s a cultural lexicon built up prior to the introduction of satellite/cable TV in the UK, which really took off around 1990. There were a lot of re-runs, and I recall a fair few bleak, dubbed Scandinavian children’s dramas, more than any American imports. With limited choice, we all watched the same things, and those things were creaking, grey and water-damaged.
There’s also an aesthetic parallel though, with things like the Radiophonic Workshop, public information films, etc: a really rich vein of publicly-funded, publicly-minded art which were really experimental in form while being familial / civic in intent.
I’m by no means a scholar on the subject, but it seemed that creatives in post-War Britain pushed and strove to create something unique, which in its weird way spoke to the national character; no longer the head of an Empire, but a kind of injured, bewildered giant grappling with its new future, both excited and terrified.
With the sword of Brexit dangling over us, and the inevitable turmoil, I doubt we’ll see any such renaissance of the public weird; it just isn’t in us any more. We broke that questing curiosity, and sidelined it from the mainstream. Even Doctor Who is all big orchestral scores and glossy production values.
Whatever the next decade holds, it’ll be bleak af, but in a dead-eyed Stepford kinda way. I can’t foresee anyone being nostalgic for the artistic output of the 2020s (mostly because we’ll all be dead in water riots, yay).