> If the US wanted to they could seize all the servers
Are you sure you didn't misread what I said? Asking because I am not sure how what you are saying has anything to do with my point.
Why would the US even consider seizing the servers? 4chan isn't breaking any US laws, and US indicated zero interest in pursuing 4chan.
The case I am describing is about 4chan breaking UK laws (by refusing to implement age verification), and UK OFCOM is threatening 4chan with fines and more. 4chan, as you said, is located in the US, so they claim they don't care about what UK wants, and that 4chan won't implement age verification due to 4chan not having such a requirement under their operating jurisdiction (US).
The only thing UK can do is block 4chan within their country, and that's pretty much it.