The correct way this all should have played out was for the West to not support Russia during World War Two and at the end of it to insist they withdraw from any conquered territories or else face total destruction and conquest.
Don’t forget that Russia was Hitler’s willing co-conspirator in the invasion of Poland which started WW2.
“The correct way this all should have played out was for the West to not support Russia during World War Two”
We were shipping military supplies to the USSR before we entered the war. Germany had committed 150 divisions, over 3,000,000 men, to their Russian invasion by the summer of 1941. If Germany had defeated Russia many of those divisions would have been free to fight on the western front.