A lot of offspring from Nazi War Criminals?
They are in Paraguay.
The German part has more of its origins in late 19th and early 20th centuries immigration than escaping Nazi war criminals. You see the same thing in the southern part of Brazil and in Paraguay and Uruguay.
But the Nazis were quietly welcomed into a country where Peronism (a trade union based populist politics for which "national socialism" is a good descriptor) became the dominant political force after a military coup in 1943 and Juan Peron's election to president (with Eva Duarte - Evita - at his side) in 1946. We should get down on our knees and thank God that this part of the hemisphere was settled by English and not Spanish or Portuguese subjects.