I agree with some of what you say, but I also think about some other things.
Poland has never been an ally of Germany.
I agree. To say that they were allies seems completely absurd to me. However, I think it would also be fair to say that, although they were never allies, and were far from being so, as far as I know, the government of Poland at the time, then a military dictatorship, tended ideologically towards the Third Reich. In fact, they signed a pact in 1934. Poland obstructed any kind of agreement between the Allies and the Soviet Union, because it was totally against the USSR. And their problem with Germany was not properly political, it was simply the fact that Germany wanted to regain its former territories and probably also to expand eastward.
So, I agree that they were not allies, which is absurd, however, they had similar inclinations in a sense. But you probably know more about this than I do.
The truth is that Germany and USSR were allies.
This is also not true. Hitler signed a pact with the Soviets simply so as not to have two fronts, but that did not make them allies. Then he attacked them. He also signed a pact with Poland, as I said, and also attacked them, does this make them allies?
They were allies, but each of them was preparing to attack their "friend" (Germany did it first in 1941).
This is contradictory.
I think it is a mistake for Putin to defend the Soviet Union as if it were something patriotic. I wonder if he thinks of Kaliningrad as a German city, or just conveniently ignores that.
But then again, you probably know more about Polish history than I do.
RE: Putin's lies about Poland in the interview with Carlson.