Yeah I agree there are no other western countries with zero covid except a couple island nations. There's also no other countries which have seriously tried to get covid to 0 except some island nations - which is interesting.
I'm convinced the most important difference is policy, but I wonder if there might be some psychological effect of living on an island all by yourself which makes you think "Well, can we just pretend the rest of the world doesn't exist?". Those thoughts might be harder to think in Europe.
> It’s basically like saying the state of New York could have been able to drive COVID down to zero while other states had it exploding.
I think Canada could drive covid down to zero by closing the US border, then enforcing strict lockdowns. (And apparently they have closed the border to the US.) I think the US or the UK could do the same if they wanted at a national level. Well, at least in theory. I acknowledge it would be much more difficult to do the same in a small european nation. At least, it would be difficult to do it alone.