I'm from Spain and i lived a considerable part of my life in a neighborhood of my hometown that had lots of argentinians in it and they all literally looked exactly like us, the only thing that really changes about them is their Spanish, which is a bizarre mix of Castillian Spanish and Italian and their culture, which can be described in the same way too.
Argentinians are basically just Spaniards and Italians (and sometimes germans too) living in another continent, that's why they're more developed than other south American countries, they're also having a migrant crisis too with bolivians and venezuelans which I think it's fucking hilarious.