The post I wrote here goes over why that doesn’t actually apply. The reason we consider countries to be relative barriers (until Communism is achieved and thus this becomes irrelevant) is because there is a degree of genuine sovereignty in countries regarding their economics. A publicly owned structure in Mexico is owned by Mexican citizens, not US citizens. Once the world is Socialist, this will begin to blur and break down towards Communism, but we aren’t there yet.
The post I wrote here goes over why that doesn’t actually apply. The reason we consider countries to be relative barriers (until Communism is achieved and thus this becomes irrelevant) is because there is a degree of genuine sovereignty in countries regarding their economics. A publicly owned structure in Mexico is owned by Mexican citizens, not US citizens. Once the world is Socialist, this will begin to blur and break down towards Communism, but we aren’t there yet.