@Neo You misquoted the Scripture. It doesn't say hate others it reads:
1 John 3:15 Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him.
If you are a true Christian, you are not going to hate your brother. You are going to hate the world. (1 John 2:15)
David said, "I hate them with perfect hatred: I count them mine enemies." (Psalm 139:22)
Did you know that God hates? (Psalm 5:5, Rev. 2:6)
So hatred is not necessarily a bad thing. In fact, it's a good thing if it's placed correctly.
Psalm 45:7 Thou lovest righteousness, and hatest wickedness: therefore God, thy God, hath anointed thee with the oil of gladness above thy fellows.