I was speculating as to an in-game explanation of why a spore zombie would have an evil alignment, despite not being animated by an evil spirit.
I have just been pointing out that your speculation leads to a mass breakdown of morality as a concept within the game.
Golems are not the same: They are animated with relatively neutral elemental spirits and a golem ordered to guard a temple will do only that, and nothing else, forever.
A Skeleton with careful orders to do that and nothing else will be just as safe, - while it is controlled. If the necromancer dies, or is otherwise unable to reassert control before 24 hours are up, the Skeleton will actively go and try to kill people.
This has nothing to do with your landmine analogy. In fact, let us seal the temple, trapping the skeletons within.
According to your own post, it doesn't matter, still a landmine:
Again, its the landmine analogy. Using dark funerary rituals to create an eternal guardian for your king's tomb is Right and Just, since only criminals would profane it, and everyone knows the punishment.
Fast forward a couple of centuries after the fall of your Eternal empire, someone wonders whats with the weird ruins, and next thing you know, a hideous death machine has murdered the entire village.
The people open the ruins, go inside, and whether it was a golem or skeletons or mummy, they get killed.
Using your own position, this makes the manufacture of golems for defense just as evil as the use of undead for defense, because they are driven to follow orders even long after their controllers are gone, and will kill innocent people who stumble upon them.
And, even if we use the MM fluff, skeletons do not immediately heel turn and head out into the world seeking life to destroy, they in fact are likely to continue doing what they have always done, following a habit, until encountering a living creature. In that regard, skeleton guardians are no different than golem guardians.
Yet, one is evil and the other is not. This is why I find the land mine analogy to why undead are evil fails. Because it applies just as validly to neutral or unaligned beings, and if it can be neutral or evil, then it cannot be offered as a proof for why one type of action is evil.
To clarify what I am saying, your land mine analogy would be like using the example of a hunting human beings as an example of why the act of hunting is evil. However, there are good versions of hunting that do not include humans, and you can even hunt humans in a way that is not considered evil (police hunting down a criminal for example). Since multiple explanations exist, some evil and some good, then the example cannot be used to prove that the act is evil by its nature.
Animate dead does not require the caster to have a hand in the deaths of the beings used to create them any more than the creation of a flesh golem does.
Exactly, meaning that the death of the individual being used for the spell cannot be the reason why the spell is evil.