Wait, if the USSR does worse in this TL then why are we allowing them to get even a bit of Poland? Hell let's kick them out of Eastern Europe and Europe all together. If Stalin is dead then I doubt there will be a leader in the SU with the will power to pursue any territory.
C'mon, giving Bohemia to Austria? What do you think it is, 1815? Besides Eastern Europe already been promised to Stalin, so the whole talking about Poland, or Prussia, being "buffer against communism" doesn't make any sense.
I proclaim this thread to be the FAIL.
Are you suggesting a genocide of 60 million people? While the Germans was rather hated in the periode try to look at the very small number of them who ethnic cleansed in the West in OTL*, the truth are that no West European country had the stomach for that large scale ethnic cleansing or genocide**, and I doubt they would support even the East European countries in it.
*Netherland tried to drive out 20000 German in the end they ended up just sending 2000 to Germany.
**Especially not in Europe against other White Christians.
You've completely missed the point of alternate history, haven't you?
You don't know real history, do you?