> Do you dislike people from entire countries because of things their governments did too?

When their governments are democratically elected, sometimes, ya. I don't want to give you any spoilers, but there's maybe a reason the average American is looked at least favourably as of late.

There are also cultural beefs that have existed for longer than I've been alive that are not even all that rational, but continue to persist. Whole cultures hating each other.

> Do you seriously blame the death star technicians? The cooks at the death star canteen?

I think someone from Aldereen might have a hard time grabbing a beer with a death star technician. Most people probably understand that blame is not equally shared, but that those technicians were on the wrong side of history. Exceptions might include people forcefully enslaved to work on the death star - and, from a distance, an external observer still would not know the difference at first glance between forceful participation, passive participation, and active participation.

It often takes time/generations to heal from the pain of their parents choices - whether those choices were active or passive. Sins of the father and all that (though I think it's unfair to put parental misdeeds onto their kids, it also historically happens a lot).