Also -- just how do you understand "Love thy neighbor," given your stated view of humanity? I'm not sure what you're asking. Our Lord was asked the following question (by a lawyer no less):
Luk 10:25-28 And behold, a lawyer stood up to put him to the test, saying, "Teacher, what shall I do to inherit eternal life?" He said to him, "What is written in the Law? How do you read it?" And he answered, "You shall love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind, and your neighbor as yourself." And he said to him, "You have answered correctly; do this, and you will live."
Now, does any of us here think we love the Lord with all our hearts, soul and mind? Does anybody here really love their neighbor as themselves? I would suggest we fail on both accounts. Man cannot live by the laws and commandments no matter how good they are. Man relies upon God's grace and mercy for when we fail to keep the commands.
Christians do love God and they show this love by enacting justice throughout the world. They illustrate their love for God through numereous charible works. But it is all because of God working through us. I suspect that you would agree that you cannot name one good act that you've done on your own for someone without the help of God.