The connection is only afective. Argentine and Uruguay, had ports and were as the "promised land" for thousands of european that came to live here, looking for a better future for them and their families.
But, those didnt happen only with the italians...
Our countries are full of the descendents from italian , spanish, germans (they came when WW ll), lebaneses, vasques, and some others that have been minorities but that had the same rights also.
America, in the 1st. half of the XX century, opened the borders for them, bcoz this countries were so much generous.
Nowadays, still remain the last names of that pple. That's why you hear that, and so much pple, in our countries have double nationality and European Union passport, bcoz of that