When Germany invaded the Netherlands they found it extremely convenient that the Netherlands had a nice centralised paper filing system telling them exactly where all the Jews lived. The Holocaust proceeded more efficiently in the Netherlands than it had in Germany.

Here is a case study from Greece in the ‘20’s, but all you need to do is google ‘ethnic cleansing’ and dig in, and you’ll see government data sources (including census data) all played a part.

[https://ieeexplore.ieee.org/document/11208589]

“The census was conducted in a period of successive wars and rapid territorial expansion. We focus on the handling of the census data for Macedonia, a newly annexed territory that would soon become the site of the first instance of large-scale ethnic cleansing in modern Europe.”

really? bosnia 1990s, turkey early 1900s, pogroms all over europe in the 19th century, holodomor, china with tibet and uighurs, germany tabulating data on the jews with the help of ibm...

If someone says the holocaust happened, do you demand evidence of the claim? Because that’s exactly what you’ve done here