How does Superman ending up in the USSR change Batman's past? Boy, that writer sure is willing to make some amazing changes to sound off on his political agenda. I wonder if he's been torn apart by rabid fan-boys yet?
The Soviet Batman is not Bruce Wayne; he is the child of dissidents whose parents are killed by the state after being detected by Superman. In his efforts to escape, he was trapped in a room or cave full of bats, and became obsessed with revenge against the state and its crimes.
Actually, the book is pretty good. If the author was trying to draw parallels with GW, he failed. The book is pretty clear on the point that the Soviet system, Superman-style, exists and succeeds only by changing its people into robots. It is the fragmented United States and Lex Luthor that end up saving the world from Super-USSR and creating a near-paradise society based on freedom.