Let us revisit the parable of the Good Samaritan (Luke 10:29-36), Jim suggests:
So the good Samaritan is the neighbor of the man who fell among thieves.
Which implies that the Levite and the priest were not the neighbor of the man who fell among thieves, let alone all the other Samaritans.
Since the protagonist of the story was from Jerusalem, the Levite and the priest were geographically his neighbors, but, being no good, did not deserve to be treated as neighbors. The Samaritan was not geographically his neighbor, but did deserve to be treated as a neighbor. The word “neighbor” implies that geography and ethnicity matters, but not to the extent of overriding human decency.
Notice that wine is mildly antiseptic, and prevents wounds from becoming infected, while oil protects the exposed living flesh that is trying to form scar tissue to cover the wound. Jesus is not only commending good behavior, but also reminding his audience to follow the best medical practice of the day.
So you are not required to love the Levite, the priest, and all the other Samaritans. Just that good Samaritan.