Jesus used "The Good Samaritan" to show that even the non-neighbor Samaritans were capable of being moral. The Samaritans were virtually indistinguishable from the Jews of Jesus's time.
This is indeed another reason to not be a Christian.
I used to hear the argument "If Christianity isn't true, how did Jesus have so much profound wisdom?" And the "wisdom" was just oneshotting people with proto-communism