Enemy article:
https://xyz.net.au/2022/09/the-decline-of-argentina-a-case-study-in-demographic-change/Between 1880 and 1914, over six million Europeans immigrated to Argentina, largely from Italy, Spain, France, Germany and Britain. The European immigration wave also correlated with Argentina becoming the 10th wealthiest nation in the world per capita by 1913, having surpassed the US’s GDP per capita in 1896. This influx also contributed to the largely Italian, but also pan-European culture, which is still evident in the nation today, from the Spanish language, the Tango dancing, the heavily meat-based cuisine, the majestic Buenos Aires architecture, including majestic buildings like the Teatro Colon
This is the picture our enemies included as an example:

Stunning European architecture of downtown Buenos Aires.
Then they complain:
Following the Great Depression of the 1930s, huge numbers of Mestizos and Amerindians from neighbouring nations like Paraguay (a nation that enforced miscegenation by law), Bolivia, Peru and Chile began to pour into Argentina, transforming the once predominantly European ethnic makeup of the nation into a nation that is believed to be around 40% non-White today.
And they post another picture as an example:

Slums growing in parts of Buenos Aires.
Comparing with pre-colonial Argentinian architecture:
https://en.wikipedia.org/wiki/Pucar%C3%A1_de_Tilcara



the slum block at least shows some geometrical resemblance to the pre-colonial style. If we look at another block with less vertical construction, the resemblance is even greater:

The same cannot be said of the colonial architecture, which is entirely Western. It is therefore clear who is Argentinian and who is not.
See also:
https://trueleft.createaforum.com/colonial-era/argentina/