The Holocaust was a natural progression as Polish and Ukrainian Ashkenazim populations exploded.
encyclopedia.thefreedictionary.com...
Before World War II World War II was the most extensive and costly armed conflict in the history of the world, involving the great majority of the
world's nations, being fought simultaneously in several major theatres, and costing approximately 55.5 million lives. The war was fought between two
groups of powers - the alliance of the British Commonwealth, United States, Soviet Union, governments-in-exile of France and other European countries
occupied by Germany and Italy, and China — collectively known as the Allies; and the alliance of Germany, Italy, and Japan—collectively known as the
Axis, and minor countries.
..... Click the link for more information. the now Polish lands were noted for the richness and variety of their ethnic communities.
Before the World War II period there were significant ethnic minorities: 4.5 million Ukrainians Ukrainians are a Slavic people of central-eastern
Europe. They are the descendants of several people who inhabited the vast area extending from north of Black Sea to the borders of Russia, Poland,
Moldova, Belarus and Slovakia. Ukraine had a very turbulent history, a fact justified by its geographical position. It was the first Scandinavian
settlers who founded the Kingdom of Kyiv (Kyivan Rus), long before Kyivan Rus leader Volodymyr accepted Christianity in 988.
..... Click the link for more information. , 3 million Jews, 1 million Belarusians Belarusians, also spelt Belarussians, Byelorussians and
Belorussians are a distinct ethnic group of East Slavs who are the major population of Belarus, also being minorities in the neighboring Poland
(especially Bialystok province), Russia, Lithuania and Ukraine. Noticeable numbers are in emigration in the USA and Canada.
The prefix "Bela" can be translated into 'White' so these people are sometimes called White Russians though not to be confused with the political
group of white Russians that opposed Bolsheviks during the Russian Civil War.
..... Click the link for more information. , and 800,000 Germans. The majority of the Jews were murdered by the National Socialists For other meanings
of the term National Socialism see National Socialism (disambiguation)
Nazism or National Socialism (German Nationalsozialismus) or Hitlerism is the totalitarian ideology of the dictatorship which ruled Germany from 1933
to 1945: the 'Third Reich'. In this ideology, the German nation and the purported "Aryan" race were considered superior to all other races. Nazism
is usually associated with Fascism.
..... Click the link for more information. during the occupation in World War II and many others emigrated in the succeeding years.
Does not sound quite what you have reported does it ?
sorry about the extra text , it prints out all the links on copy paste.