His point was the mass murder in Poland was done out of expediency rather than anti-Semitism. The Nazis didn't have a plan to hold those they captured so murdering them was more convenient.
If true, that doesn't make what they did any less evil.
But, his point was that this was another example of the government putting a spin on an event to push a narrative.
In this case, that narrative has established the principle that one act of murder is worse than another. That principle is the one behind hate crime legislation. It's created multiple double standards and tiers of justice in this country.
Ahh, but they did have a plan: "The Hunger Plan". Russian prisoners of war were deprived of food, shelter and blankets. Not even a tent. Not even a shack. Nothing. Don't tell me the Germans didn't have any tents.
For your edification:
Darryl Cooper is a fraud.