McGrath: if they are known to be Irish Argentineans, they will probably be called Irlandeses or simply gringos. Polaco is used humorously for those whose origins are absolutely unknown, or for those who have such an obvious Spanish or Italian name, that it is a joke to name them Poles. For example, the famous tango singer Roberto Goyeneche (more basque than a beret) was called El Polaco.

Dicho, about 20% of Argentineans are descendants from Galizians who arrived by hundreds of thousands at the end of the 19th century and the first quarter of the 20th. My wife is 100% Galizian because her parents arrived in the latest immigration waves of 1930/40. The wave of colonists was formed mainly by Basques who have always been the traditional owners of the richest lands. Curiously, Galizia is presently offering openings for immigration to Argentineans, in the concept of repopulation of Galizian lands, and there are people who spend the whole night in the line at the doors of the Spanish Embassy to sell their position to applicants.

Un abrazo - Andrés