This need to see suffering as universal to be valid is problematic, because very few atrocities affect a large portion of a population. That most don't does not jvalidate them.
Another ~100k Kurds and Shiite Arabs were killed during the '91 uprisings. Together, they make up more than half of the population.
Unless Saddam was super surgical (#heWasnt), they were affected. Unless of course, by "personally affected", you mean they personally did die. But that would be a very strange idea.
In any case you're the one mong goalposts here - this started with simply making the point that it's unread jable to assume a single experience captures the experience of a people.
Nevertheless you've provided nothing to justify the idea that Saddam's purges affected anywhere close to a majority of the population, even if that is itself a distraction.
When talking about how "people in a country" live, you look at the average person. You don't say "but the King and his ministers live differently, we shouldn't erase their experiences". The inner circle always lives differently from the masses, but by definition, they are very few. Look at the lives of the many, not the few.
And regarding Iraq: during Saddam's reign about a quarter of a million people were murdered or disappeared. There's a good chance that the majority of Iraqis did have someone in their family affected, though it might not have been their son, but a cousin or nephew.