I don't buy all the patriotic/nationalist BS about picking your country 'til death do you part. I'm mixed heritage. Love Australia, love the Socceroos, obey the law, pay my taxes, raise my kids here, committed my life and work to this country. I consider myself Australian but with deep family, cultural and linguistic ties to Argentina. I have had the misfortune of having Argentina and Australia meet at a world cup. It's agony.
But I do have a problem with someone who was invested in through Australian (or any other) pathways then committing to another country who have done sweet FA and poached them. Seems unfair. Put that way, Italy might feel hard done by over Volpato given he was outright rejected here.