I've read through this thread a couple of times now and I'm afraid I'm going to add my sixpennyworth. Yes, I'm British and most of what I'm going to say relates more to the UK market.
I honestly seriously believe that this is a much more complex matter than has been discussed so far on this thread. Having been away from Hifi for a few years, I've some observations to make. Bear with me!
1) My favoruite magazine used to be HiFi Choice. Fifteen to twenty years ago it had the most balanced HONEST reviews one could find. I still go back and read reviews for used Hifi that I see for sale - or to read again reviews of kit I've owned. But now it's just one big advert, apart from the obvious fact that everything costs more, there's very little mention of any Hifi more than 3 or 4 years old - and more worryingly everything now gets 5 stars and everything sounds wonderful! Except of course that's clearly nonsense. So how has this happened? Because "vested interests" have taken over, because they're giving their full support to the Hifi industry. This magazine isn't really for music lovers any longer, that's just a facade, it's to sell expensive Hifi. And somehow we all need so much more gear now! The whole Hifi experience has been commodified. Not only has the high end gone into overdrive but it's moved to centre stage.
2) I knew 25 years ago that cabling could make a profound difference to Hifi. That in many cases just changing an interconnect could transform a system. In recent years I've discovered that mains cabling also works wonders. On any forum where people start shouting "snake oil", I'm one of those people saying "forget measurements, just listen".
3) I've also noticed in several modern Hifi mags - quite clearly stated product by product - that virtually all British kit is actually manufactured in China. Designed and marketed here, but made in China.
4) I'm amazed at the stunning variety of Hifi cables of every type now coming out of China, Hong Kong and Taiwan - okay mostly China!
5) The people creating the most fuss about these cheap Chinese products are American high end brands. They have a very privileged lucrative market to protect. There are people in the US who will pay 10k plus sums for mains cables - okay, it's a free world but that has to be a very limited market even in the USA. What annoys me is roundly dismissing the Chinese as manufacturers of worthless knock offs, that their products simply can't be trusted, should be chucked away etc etc - this doesn't ring true I'm afraid, it's just not the case. It's become as silly as the 1960s when people grumbled about things "Made in Japan". Yes, I can see a limited range of copied US brands on Aliexpress, but there are fewer than you'd think - most of what one sees in 2020 are actually Chinese designed cables. Correct me if I'm genuinely wrong here. What I'm saying is that many of the unbranded cables etc are probably far better than you'd think, and are certainly excellent value. The kind of insults I've seen and read being thrown at the Chinese are close to racist in tone, even reminiscent of that hateful man the USA should be ashamed to have as a President.
6) In the UK I've recently noticed a small boutique brand label trying to pull a fast one and people in the industry trying to defend them. But the evidence is overwhelming. So what is going on? They're offering several mains cables at what I'd describe as mid-market prices. Unfortunately I can see every cable for sale on Aliexpress. So for example one of their British branded mains cables is priced at £175 - but is just £30 on Aliexpress. "It's a copy!" everybody shouts! No it isn't - it's the British that are pulling a fast one here. All they're doing is importing the cables from China, changing one plug, and adding some nicely logo'd shrinks. The Chinese source has pictures of their workshops, cross sections of the cables, close ups of every part of the cable . The British brand says nothing, there's no mention whatsoever of where they've been made, how they've been constructed, nothing. Instead there's the usual purple prose and plenty of promises. A little googling even showed their early promo shots - complete with the once ubiquitous red MK "hospital" plugs so commonly seen on Chinese mains cables. Now, they have more discreet black MK plugs... not quite such a giveaway.
I'm hearing from other cynics that this company is not the only British cable brand doing something similar. I gather the truth is very simple. If you consider how many cables these firms might actually sell, you couldn't possibly have a plant just producing a few hundred a year. No the Chinese have those plants - they have capacity and capability to produce thousands and thousands, then the economics work - then they sell them to the world.
I notice that even some of the revived retro British brands like Quad and Wharfedale have their speakers made in China now. Complete with a Union Jack glued on the back. Welcome to the 21st century folks.