No you're not a crybaby and your father was a different generation with different "rules" as to what was talked about and, as you say, "he was physically and emotionally damaged the rest of his life" so it's not quite true that, he survived that/I'm not "surviving" this? You're surviving great! It's good you were born now and able to talk about these things and get comfort from others, etc. Besides, one can't "compare" what someone else went though with what we go through, we only have/know what our own experiences are in whole and how they have affected us, etc.

Looking at the pictures one "imagines" what it would be like but that's only imagine. Think of how you felt during "the Cold War" for example and how it is portrayed and it's obvious to you that it's a different thing than what you know but younger people who didn't live through it like we did are going to think differently of us? Not as "extreme" as the Holocaust and what you're researching but it was a whole different world; I do genealogy research too and wonder how my great grandparents got along with no car, furnace, modern kitchen/grocery stores, etc. It seemed "normal" to them though and your father's griefs were part of his life, not separate from them like they are from yours.

You can't just "get over" your abuses because some of it has been hardwired into your brain and it takes time to "reroute" around the bad stuff, if one is able to do it for themselves at all. It takes a lot of time and work, therapy, etc. I would look for a good therapist if you don't have one and work with them for a bit, see what you can see about making your life "better"/more comfortable for yourself?