Love (John 3:16)

What is it? Why is it so special that Jesus would base his entire ministry on this one main emotion? How has this, then, been taken and changed into the society that we now have today? You see love covers all. No, not just the crappy Hollywood "love" that it's movies love to show, but the Greek agape: the all-consuming, unconditional love. Sometimes I forget what unconditional means. Without condition. You see "God so loved the world," his creation (one that has turned on him time and time again falling just short of all of his expectations), "that he gave his one and only son," His own person (direct relation, blood and bone of himself, only son there is none other.), "so that all who believes in him," giving that world that he created and is sole owner of a choice (the choice of moving away from him or moving closer to him, The true love: choice. To love is to risk pain, not to love is to guarantee pain.), "shall have everlasting life," true and wholesome life lived in the presence of a love that reaches out to his own creation giving them a 2nd chance. That love, John goes on to say was sent to save the world. Not condemn it. So now when I see signs of any type saying that "God hates. . ." or that "all ____ are going to hell" it makes me question their theology. How can a love that was sent to save and not condemn, condemn? How can we, completely imperfect beings, condemn that which the most perfect being in the world condemn? There seems to be a need for a revolution of love. It bothers me that the word love is just one word. The Greeks and Hebrews had at least 3 if not 4 words for love alone, each one with a different meaning. Love today has become a large farce, mainly used to get what one wants without any thought to its actual meaning. How can a word that is used to describe this great and powerful being/presence also be used to show emotion to inadequate temporary things like food or a game?