+Jonathan Langdale, I like the "long zoom" perspective you've taken. I like to do the very same thing in my mental wanderings.
It's truly funny how a simple arrangement of words can cause such a visceral reaction. Like you said, we all have our triggers. And they've all been laid down long ago by our upbringing, guided by our culture, in-bedded in our society.
My guess is you saying "necessary" was the trigger. An association of that word's meaning to one of the world's worst periods of cruelty (Yes, just one, and probably not the worst. History if filled with evil-doers and do-gooders committing genocide. Just pick up one of the "good books" to read how useful and wonderful they were when "god" happened to shine down his judgement in your favor.) Where was I... yes, that word's association to one of the world's worst tragedies can easily be misconstrued to the similar message of those whom carried it out - and therefore make you appear to say that "the final solution was necessary." At that point their ability to see any valid points you were trying to make were lost causes. In their eyes you, dear sir, became Hitler and shall be stomped out like the Jews! (Wait, that's not right.)
I personally would swap out "necessary" with "inevitable." That way you can offend a whole new swath of people (maybe even more) who can't see beyond their own sphere of influence. People who don't care about history. People who don't look up to the stars and down at the quantum level. People who don't even care to peer into their own minds to see the gears in action. (To see their mental conditioning - good and bad.) Because when they do, it scares them.
When you look across history and account for all the things that happened, it wasn't necessary. It didn't need to happen. It had to happen. A need necessitates a choice to be made in order to realize it. But there wasn't any other choice because it was never a choice to begin with.
This is where the scary part kicks in. And where the great American hero dies. (Not the "Greatest American Hero." He's fine. And awesome.) To witness this you have to see that the "free will" we've been idealizing while growing up American (or growing up idolizing American ideals from foreign shores) isn't really that advertised and legendary beacon of hope that allows a poor kid to make it to the Oval Office. You can't do what you want and you certainly can't go completely against the odds. The game is rigged. The house always wins. Your choices aren't really choices, they are habits. In fact you are just a ball of habits. And we, together in this world - all of us and our fellow Earthlings and environment - are just a clusterfuck of habits and cycles colliding, canceling out, reassembling and dancing about and linking together. It's all just patterns repeating. A fractaling of actions across all magnification layers of space and time.
Even if free will exists, it's not much. It's a sliver, a small window of probability that only matters at our very small human level that can be snuffed out if not by our own worst actions (WWII case in point), then by an unforgiving, even unknowing Universe just waiting to convert our meaty morsels back to a new star. In the grand design of things, it's all just an insignificant fart from a gnat in the dwindling twinkle of a long ago dead galaxy. (I personally find that terrifyingly liberating. It's like reading a book. You know it has an ending but you still don't know how it ends. It's exciting. You can't put it down. Despite it having a fixed ending, you still care about the journey to get there.)
What people don't like is the thought that there can't be good or evil. (Completely ignoring the fact that it's all relative to begin with.) There needs to be free will and choice so that people can chose to be evil so we can punish them for their bad decisions. And once something is deemed evil don't you dare become even remotely associated with it. There is no choice in their response towards you. The knee was always jerked.
