There are those that actually hate people for what they have done to them or someone they love. Yet they say, they love God.
Love one another, because God is love.
You can, you just choose not to.
I John 4:20 (KJV) – 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? And this commandment have we from him. That he who loveth God love his brother also.
I John 4: 11 (KJV) – beloved, if God so loved us, we ought also to love one another.