But that's irrelevant. I'm sure most in the UK didn't like one of their own being extradited to the US for having a UK-legal link site.

It's only irrelevant if you capitulate that democracy has failed and is non-representative (ie. protests and other public action would not alter the outcome). While I am somewhat inclined to that perspective myself, it's important not to be completely defeatist, and I think New Zealand is doing relatively well in that department.