Great write-up. Note that the UK is no longer part of the EU so even those .uk domains are a bit of a red flag.
> Last time I checked GB was not part of the EU. And it’s also a member of FIVE eyes.
I don't think they need to worry about the FIVE eyes when the "FIVE eyes plus 3", "Nine Eyes", and "Fourteen Eyes" contain several EU countries. The larger groups aren't working together as intensively but it's not like cutting off the UK is going to stop the US from the (industrial) espionage they do in the EU.
$ dig ns joindns4.eu +short
ns63.cloudns.net.
ns64.cloudns.uk.
ns61.cloudns.net.