most of the Brazilians playing for Italy have real Italian descent (though there a couple of notable exceptions) and currently play or have played for quite a while in the past in the Italian league...
it's not our fault if many Italians in the past 200 years (or more) had to leave our Country and establish elsewhere in the Globe (the American Continent more than any other place)...
our laws are clear...those people (and their sons, nephews etc.) are still to be considered Italians, if nobody in the line of succession did give up the Italian Nationality...
so, I don't see anything wrong giving them a chance to get back to their origins...
for what concerns Azerbaijan and Kazakhstan, of course, the situation is a lot different...it's just the smell of oiled money...