Right! Enforce it in Argentina.
Your point being?
Do you think that service centres designated (read: contracted) by Apple to service warranties, will service a local-product warranty any better or worse than one purchased abroad?
(EDITED TO ADD: Or does enforceability only refer to courts, and no other standards exist? Indeed, when all you
have are is a hammer, everything truly does look like a nail.)
(EDIT 2: Perhaps that was too harsh: who knows, maybe in this country one truly needs recourse to courts to enforce a warranty.
That is not true, however, in the case of Apple, a company which generally tends to give a hoot about having happy customers, an order of magnitude more so than many other vendors. A company like that does what it needs to do to make sure an international warranty is indeed honoured internationally. And that's worth a lot more than enforceability at court.)
FWIW, I had an issue with a MacBook hard drive (SSD for the pedantic) a few years back, I took it into the Apple authorized retailer next to Alto Palermo, they said they'll be happy to service the computer but it would take a few weeks for the relevant part to arrive.
In that timespan I had my computer sent to NY, taken to an Apple Store, fixed, and brought back here.