Let me see if I'm parsing this correctly. Mengele's son goes to his dad's hideaway in Brazil, the only one in the family to do so, while believing the propoganda about him being a death slinging doctor who preformed Frankenstein experiments on "people." He waits a few days, talking with Josef about other things, until he finally asks "Why he did all these horrible things." Josef rightly gets mad at his son, asking why his own flesh and blood believes these obvious lies about him. Probably thought his own son came to get a confession and condemn him, but that's just my opinion. Josef further goes on, saying he helped as many people as he could but "the system" was disorderly (The bombings and supply shortages before that on top of the sheer amount of inmates?), and he couldn't help the hundreds of thousands that went to Auschwitz Internment camp (Not millions as told to us constantly?) But Rolf doesn't seem to be listening, and then tries to say that it is "unthinkable" that his dad wouldn't have tried every day to leave Auschwitz, and that everything he's (Supposedly) done is "Horrible." All without giving a single thought to the fact that, perhaps, his father hadn't done these bizarre things that are tacked to his rap sheet. Does that about sum it up?