I'm not defending the price of all bike parts, I've been pretty critical in recent years, but my issue is levied at the big investment fund owned brands that offshore everything to the cheapest location they can find while hiking prices. A company like Hope that is keeping skilled manufacturing in the UK should be applauded. As to your comment of 'too much money to burn' it seems a not even veiled dig at those with more money than you, or who are willing to spend money on different things. Different people have different priorities as to what constitutes value, and what they're willing to spend their money on. If you ride hard and regularly a quality component is worth it. You could buy two Cane Creek 40 series headsets for the price of one Hope, but the two CC ones wouldn't last a year whereas my youngest Hope is nearly five years old and still on the original bearings after nearly 10k harsh km, and probably hundreds of jet washes. I wouldn't say £90 for a headset is particularly bad value, and given my last set of their brakes did 12 years I'd say the overall cost per ride is pretty minimal.
Now the labour issue does come into it for me, and why I haven't actually pulled the pin on getting one of these because in everything else I'm a massive proponent of supporting UK labour. In this case the simple fact is that I wouldn't be buying an alternative, I'd just leave the random thing on there that's fitted presently, so no existing manufacturer would be losing out. But the labour and unknown conditions element of it is actually the bit I'm struggling to justify. I still don't care about the genuine bit for the fun of the hobby though. Does it look right for a bike that's going to be ridden once? Yep. Good enough then, if you can get over the potential labour and condition issue. Existing products being ripped off I do have an issue with, and it's probably the bit that pushes me to not bother in this instance.
Your issue with repro stuff made in the EU actually doesn't hold any such problem. It's keeping skilled manufacturing within the EU (not the UK, but better than China), and it's of high quality. The brand in a few examples still exist, yes, but not the companies as they were, and these manufacturers as they exist now have zero interest in the old stuff. Syncros are a far cry, and someone wanting a replica of their nineties exotic stuff are hardly going to be considering one of their Chinese generic ones. The same with Marzocchi. The company as it was is long dead so who cares if someone is making replica fork bridges etc? I think on the copies and cheap 'inspired by' stuff flooding aliexpress etc is a pretty slam dunk think to say is bad. Someone re-engineering stuff no longer available is absolutely fine, both from a safety and moral standpoint, unless you happen to be trying to make large profits from stock of old stuff you've stashed.
Quality wise I'd certainly not fit any of this Chinese fakery to a bike I was actually going to ride purely from a safety perspective. Bars, forks and frames failing can be catastrophic, and does still happen even with the best stuff. Throwing in minimal QC and traceability just makes that risk so much worse. Some things I'd be very careful of sourcing parts; like suspension and brakes on a car, and similarly with any climbing gear. The last thing you want to discover half way up a cliff is that your axe picks are not genuine (I've still broken a few though on mixed routes), or your rope was made of old string. But then if you take the clothing argument, do you think it's okay where a high street chain copies a designer item and offers it for sale having made it in a far east sweat shop? It's a legit company doing it, and where is the line between 'copy' and 'inspired by'? And I don't mean that facetiously, because there is a point where it changes from one to the other, and that point will be different for different people. And then you have the likes of Shein and Temu who aren't actually always copying fashion, but are providing utter garbage products and producing them by the cheapest means possible using questionable labour practices. I say questionable but I think everyone knows it's often beyond that. The problem here goes far beyond a few headsets and instead goes into the bigger piece of how we want to operate as a civilisation, and how we interact with other countries. Personally I don't think any company can knowingly go to china for their products to be manufactured and then complain when they get copied. They know it's going to happen even before they send the designs.
I suspect this whole discussion would be a lot easier in the pub, and could be infinitely more nuanced, but here we are.