With time, they would’ve killed it, with deportations, settlements, language policy, etc.
The Soviets had 50 years, and didn’t manage it. The Nazis had five years and managed a fifth of the fucking population.
Pretty sure the Nazis put a higher priority on genocide than the Soviets did. Guess what? That makes them worse. And looking at those numbers, considerably worse.
They probably would’ve treated Poland like Ukraine and worse right from the start
They did treat Poland like Ukraine.
if the Nazis hadn’t tried a very similar thing directly beforehand: Poland had a very active and well-organised resistance, had the Soviets started out with their usual genocidal programme the Polish resistance would’ve fought right back. So they bid their time, first carefully cultivating an image as liberators.
The Polish Home Army was a nonentity by the end of the war due to the Sovs stabbing them in the back, and the Cursed Soldiers of the next decade achieved little. It wasn’t that the Polish people just suddenly ‘forgot’ about what the Soviets had done to them - it was that the Nazis were unamfuckingbiguously worse.