I figured I should post what evidence is used for the Intelligenzaktion here. It's claimed about 100,000 were killed in it from about between 1939-1940, and then around 3,500 killed in Aktion AB. I'm sure there are individual documents that can be found of some of the Polish intelligentsia being killed or arrested, but nothing that I am aware that demonstrates it to be 100,000.
There is also the
Special Prosecution Book – Poland or
Sonderfahndungsbuch Polen that gives a list of around 61,000 Polish intellectuals. As far as I can tell, there is nothing in the book says they should all be killed. Under section B giving instructions, it just says to arrest them, but nothing about killing. Of course, it could be argued that they didn't want to mention it for cover. One interesting person on the list is Orłowicz, Marian (I think? The name isn't completely clear) on page 116 which says "Vorsicht! Zum Tode verurteilt" which translates to "Beware! Sentenced to death"
Now that is a very strange thing to add for a "Prosecution Book" where everyone has already supposedly been "sentenced to death". Although perhaps one response could be that he was already known for being more dangerous than the rest of the intelligentsia and so that's why the death sentence, presumably in absentia, was given before this list was drawn up. So perhaps not completely decisive, but still a bit unexpected given that they saw the entire intelligentsia as a threat, which is why the list was drawn up with all of them being sentenced to death anyway.
https://sbc.org.pl/Content/24330/PDF/ii ... 0-0001.pdf
Then there is 172-USSR, a document written by Bormann on October 2, 1940 of what Hitler said. This is probably the best evidence for the orthodox interpretation of the Intelligenzaktion. It describes several harsh policies Hitler advocated for the Poles, but this is the most relevant part for this:
Unbedingt zu beachten sei, dass es keine ,,polnischen Herren" geben diirfte; wo polnische Herren vorhanden seien, sollten sie, so hart das klingen moge, umgebracht werden.
Noch einmal. musse der Fuhrer betonen, dass es fur die Polen nur einen Herren geben diirfe und das sei der Deutsche; zwei Herren nebeneinander konne es nicht geben und diirfe es nicht geben, daher seien alle Vertreter der polnischen Intelligenz umzu bringen. Dies klinge hart, aber es sei nun einmal das Lebensgesetz.
Translated:
It must be absolutely borne in mind that there must be no ‘Polish masters’; wherever Polish masters exist, they should, however harsh that may sound, be killed.
...
Once again, the Führer had to emphasize that for the Poles there could be only one master, and that was the German; two masters could not and must not exist side by side. Therefore, all representatives of the Polish intelligentsia are to be killed. This may sound harsh, but it is simply the law of life.
https://tile.loc.gov/storage-services/s ... -XXXIX.pdf
pp. 427-428
If one wants to have a revisionist view of the Intelligenzaktion, it seems the only way to view this document would be to either argue it's a forgery or that Hitler was being hyperbolic.