There is a compelling argument that the US is culturally much more like a highly developed version of a Latin American country than a European country. Over time I find myself coming around to this idea.

To the extent it's similar to any other culture I agree, the closest feels like brazil (to me) - but it's also very distinct, it's very much it's own thing in a way that few other cultures are (I would probably count the UK as one of those few by the way).

Latin America is all quite similar.

Mainland Europe is quite similar, bar the obvious exception.