Shitty choice of words, but y’all need to accept that there were many, many people in Europe and elsewhere who quietly thought “Well USA, now you know what it feels like”.
The fact the attacks were in New York was especially relevent in the UK… for years Irish terrorism was funded by from the bars and clubs of Irish New York, and little was done to stop it.
Then the USA start beating on nations for “sponsoring terrorism” and we’re like, “duh, that’s what we’ve been trying to say”. There was a real sense that the US was “reaping what they’d sown.”
Not a feeling I share… “fun” as in happiness doesn’t hit the mark, but it was morbidly interesting seeing the shock of a secure (complacent) population suddenly facing what we’ve faced for decades.