Germany and Russia can’t be compared. In Berlin, there is a democratically elected government, there is rule of law and morals. This does not apply to Russia. But you are right: Russian must also pay. But I do not believe that our generation will live long enough to see Moscow accept its responsibility.
Though I’d say more, I already pretty much said everything that needs to be said a few days ago. Russia should pay up whenever the Poles accept gather the courage to accept their responsibility for installing the Bolshevik dictatorship on Russians. The Bolsheviks did 1-2 orders of magnitude more damage to Russia than they did to Poland, so any exchange of reparations would be in our favor.
On a more pragmatic note, though, picking reparations-related quarrels with Germany, Russia, and Jews simultaneously doesn’t seem like an awfully smart idea. If unfortunately well in line with Polish strategic culture.