Most Argentine oligarchs (Roemmers, Rocca, Bulgeroni, etc) are EU passport holding EU citizens that don't even live in Argentina.
Why are Chaco, Santiago del Estero, Rio Negro, etc some of the most productive regions on earth, yet impovershed hellholes, while similar areas like Matto Grosso & even the Paraguayan Chaco are undergoing a prosperous agro boom with new cars, new roads, new houses etc everywhere?
The short answer is because Brazil & Paraguay aren't vassal/slave states that exist to subsidize starving europoors like Argentina is. Most of the region, if not hemisphere, hates portenos & it's likely once the BA oligarchy loyal to the EU is replaced a union will form, as we've seen recent news. Right now Brazil is issuing a lot of passports to Argentine citizens setting the groundwork for a union, promoting the idea of Argentine/Brazilian fraternity & I wish them luck. This option would probably benefit the average Argentine the most.