For one thing, we seem to be wired to empathize more with people in the in-group than people in the out-group. For another, once we begin to see a conflict through the lens of empathy, we tend to adjust our interpretation of the evidence so as to share the interests and bias of whomever we first began to empathize with in the conflict. In short: empathy ought to be approached with caution.
Empathy might not work that way. See: Notes on Empathy.
For one thing, we seem to be wired to empathize more with people in the in-group than people in the out-group. For another, once we begin to see a conflict through the lens of empathy, we tend to adjust our interpretation of the evidence so as to share the interests and bias of whomever we first began to empathize with in the conflict. In short: empathy ought to be approached with caution.