I was born in 1983. I remember Reagan, Thatcher and Gorbachev, but only vaguely, as images on TV. It wasn't until 2nd or 3rd grade in elementary school that I even began to be politically aware (the U.S. 1992 presidential election is the first one that I followed with interest; I was initially in favour of Bush "becuz he's da Prezdent!" before I switched over to Clinton). Therefore for me the Cold War is as abstract a concept as the 3rd Reich and World War II. By abstract I mean I don't have any personal memories or feelings of either event. Because of this I make my judgement purely based on what I've read and what I've watched from TV. I would lie if I said my Jewish background didn't also play a role in this.
The Soviet Union was an authoritarian regime, and under Stalin it was a totalitarian one. It was crumbling for decades and it deserved to fall. Still, I regard the 3rd Reich as much worse. Because of this, I really don't think that a world where the Cold War is butterflyed away is worth it if it meant the additional death and suffering of millions of people. For me, the shorter the war, the better. That's basically what Roosevelt and Churchill had to decide at the time when dealing with Stalin, and I for one think they made the right call.
Agreed, just trying to provide a different sort of answer to your question, one that maybe gets at the psychology of some of the people on the board born before 1983 that doesn't "totally" white wash the fascination in the process.
If you're fishing for anti-semetism, I very much hope you don't find it, and I think most people who have desires to examine better-performing 3rd Reichs do so in spite of the acceptable, modern ideals they hold. I was impressed with a post Blairwitch wrote in his recent Manstein/Rommel TLs that basically took time out to remind everyone what monsters he was playing with there.
I will say, reading Rommel's Barbarossa, it's quite interesting how many of the commentors are pushing for the Jews not to die, for the Nazis to decide to ship them off to Madagascar instead. And this with no encouragement from Blairwitch at all, they just keep hinting really hard that it would be nice if they could have their cake and not have the Jews die at the same time.