Of course not. But I will point out that the Germans did have specific plans to exterminate the entire Polish race in due course, the Soviets didn't have such plans.
Yes, tragically so.
To this day, it is unfathomable to me, and I’m a historian (as well as mentally handicapped, i. e. funnily, I myself would have been slated for extermination, too; my handicapped great-uncle was, actually, indeed murdered), where such hatred of fellow human beings comes from.
I myself have often asked God in prayer, why He would have let this happen.
Don’t be so sure that they didn’t have such plans. Ignoring that Stalin had absolutely no qualms to conducting something similar to the Holocaust with his Doctor’s Plot, the Soviets under Lenin also had conducted the Soviet-Poland War just after World War I, which also ended up exposing a taste of what a Soviet-run Europe would have looked like (and Poland wasn’t even their target, Germany was).
Besides, the fact that Poles when engaging in shootouts with both Nazis and Soviets generally tried to use TWO bullets instead of one on the latter to make sure they’re dead indicates the Soviets probably would have planned to exterminate the Poles if given the opportunity. Let’s also not forget their Katyn massacre.