I think that my ability to empathize with something is mostly based on its similarity to myself, and the more I understand particlar things about people, the less I empathize with those things.
That being said, when I better understand something I identify with, my empathy is fairly undiminished. When someone complains about "not fitting in" because of their interests, and I know that they're not signalling affiliation with others becaue they allocate attention and determine beliefs to be more truth-oriented or sciencey because of their upbringing and various quirks, I still feel empathetic.
For some reason, novelty can also make me try to feel sympathy for something. Like, trying to understand how a foreign group feels on the inside can still motivate empathy, for me.
steven0461 (comment under "Preference For (Many) Future Worlds"):
Yvain (Behaviorism: Beware Anthropomorphizing Humans):
Eliezer (Sympathetic Minds):
So, what if, the more we understand something, the less we tend to anthropomorphize it, and the less we empathize/sympathize with it? See this post for some possible examples of this. Or consider Yvain's blue-minimizing robot. At first we might empathize or even sympathize with its apparent goal of minimizing blue, at least until we understand that it's just a dumb program. We still sympathize with the predicament of the human-level side module inside that robot, but maybe only until we can understand it as something besides a "human level intelligence"? Should we keep carrying forward behaviorism's program of de-anthropomorphizing humans, knowing that it might (or probably will) reduce our level of empathy/sympathy towards others?