The Only Thing Necessary for the Triumph of Evil is that Good Men Do Nothing.
I'm going to Dissect this one point at a time, using what I know of those points in time.
This isn't about a Job. This is about our responsibility as humans. My Grand Father sat idly by as nineteen year old kids were sent off to die alone in a foreign. Don't tell me that because I think that makes him a bad person , That I need to grow up.
You say your grandfather sat idly as young men fought and died in foreign lands; assuming he was working in a factory during World War 2, He would be considered Essential Personnel, and not allowed to enlist; skilled workers, able to make parts for tanks, planes, ammunition, or even ships were always in short supply for the duration of the war, and skilled factory workers were basically told that the best thing they could do for the war effort was to help retool their factories as per the needs of the nation's military.
My Grand Father sat idly by as people pelted MLK with rocks and bottles. Swore at him , spit on him and what he do? Nothing. He didn't even explain to his own daughter that that was wrong. That treating people differently because of the color of their skin was incorrect and you all want to paint him as some sort of hero?
When MLK's civil rights movement started gaining traction, it was not considered 'wrong' to consider people of colour to be second-class citizens, at best. Remember, it had been barely a century since Slavery had been abolished, and, assuming your grandfather was born in the 20's or early 30's, he had spent essentially all of his formative years being taught that people with different skin colour were, at best, beneath his notice. As far as John Q. Public cared, what was going on with black men and women meant slightly less than a note in the morning newspaper, as they were busy being concerned about making enough money to feed his kids.
And I'm just looking at the 60s. He lived during the 70s , Women's Liberation and what he did do? What did he do for his daughter? Nothing. Let her get a job in a factory at seventy. In the 80s when AIDS plagued the gay community , what did he do? Go to a luncheon? No. Give money? No. Anything? No. He sat by while the world around him suffered and did nothing and by asking him to do anything to find any cause in his life worth fighting for makes me a bad person?
Shall I assume that your mother was old enough to make her own decisions at that point, considering you mentioned her getting a factory job? Was he deliberately preventing her from doing things like providing for her family, or was he encouraging her to stay at home, barefoot and pregnant? If neither of those assertions were true, which can be inferred by your stating that he 'let' her get a factory job, well, he did more to support women's rights by the simple expedient of not saying 'no, you can't get a job at a factory.'
In regards to HIV/AIDS, did he have any family members that were infected? Did he have friends that were infected? Did you expect him to overturn 60-some years of ingrained cultural bigotry overnight simply because of a disease that, according to all the news sources of the time, only affected 'Ankle-grabbers', when he was probably wondering how he'd have enough money saved for his likely-impending retirement? Speaking as someone whose father died from complications from HIV/AIDS, I can honestly say that your grandfather's position at the time is wholly unsurprising, and hardly something to condemn him for. If were were to condemn everyone that didn't do a damn thing about HIV/AIDS when it was first announced, then there'd be some 99% or more of the world in the prison made up of scorn and hostility that you seem to espouse.
It's not even about fighting. It's just about sleeping. The fact that he could sleep easily at night knowing that this was the world he had given his childern bothers me. It truly does. Maybe I'm wrong though. Maybe it did but my mother didn't tell me. From what I've been told none of this bother. None of it matter to him. MLK , Robbie Kennedy , John Lennon , Jonestown , The Challenger. None of these tragedies. Real honest to gooodness tragedies bothered him or a caused a moments hesitation in his daily routine. That's not right in my eyes. It's not acceptable.
In my opinion, he could sleep easily at night knowing that he did what was In His Power to try and make things a better place for his children. MLK's death was sad, yes, but it's not something he could have predicted, or prevented. Nor Robbie Kennedy (Speaking as a Canadian, by the by, Who the Hell is he?). Lennon was killed by a nutcase; Did your grandfather know either man personally? I doubt it. Was he at Jonestown, or did he read about it in the newspaper, or hear about it on the radio? The Challenger. Did he work on it? You point at moments in history which had a large public outcry, and blame your grandfather for not weeping, wailing, and gnashing his teeth when it would have amounted to nothing.
Would you castigate me for not donating money to survivors of the 9/11 attacks? I mean, I was only in high school at the time, and I live only a thousand kilometres away from New York, so clearly it must have been a massive formative event that completely changed my worldview, instead of me watching the TV in the school library for an hour, then returning to my homework because I wanted an A grade in my chemistry class. We remain detached from major events, because we are almost never involved in major events. I cannot find it in me to blame your grandfather for doing what it human nature; saying 'not my problem' to something that happens hundreds or thousands of kilometres away, and trying to get enough money to feed his family.