Earlier quoted context omitted.
Europe has an ocean to keep most of its poorer would-be neighbors away. You can't wave away geography. The US is comparable to Europe, not one country in Europe.
Which is this ocean you are talking about? Because Europe has only the Atlantic Ocean on its West and the nearest countries on the Other side of the Atlantic are the US and Canada.
PG's scale of levels of disagreement in discourse, that's like a negative 4.