On the other hand, the Poles were no fans of Russians and they were governed by a right-wing military regime. As late as early-39 their relations with Germany were ok as far as I can tell, so what could lead to Poland being a willing participant in the destruction of the USSR?
Let´s start in WW1:
The Germany play the polish card sooner. When the war ends the Poles in return make fever demands on Germany, not least because they do not want to end up between two potentially more powerful, hostile nations ... again. This in return leads to Germany helping Poland against the USSR during the 1919-21 war, not least because the last thing the Germans want at their border is a satellite of the USSR. That is followed by a negotiated and rather non-violent sollution of the Upper Silesia conflict and last but not least they even reach a compromise on Danzig. The Poles agree to german sovereignty, the Germans agree to no more than a symbolic garrison and extraterritorrial polish acess to the port. Anything going to or comming from Poland is not taxed. Danzig could become the port of Poland, which would be beneficial to the economy of Danzig. And what do the Germans get in return? Maybe an extraterritorrial railroad line across the corridor?
This could go a long way to defuse tensions. With regard to the Jews, originally Hitler wanted them out not dead and IIRC the USSR was the object of his colonial fantasies. It was big enough for Finnland, Romania and Poland to get some slices too, wasn´t it.