1 John 4:20 says:
If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?
We should love our neighbor, siblings, foes, everybody! After all God loved us and gave us Jesus. It's not easy, but required an therefore doable if we commit to God's will and teachings in the Bible. Thanks.