Well I am human so my definition of love is imperfect.
I believe love is deep caring towards another individual, a compassion which can't be put into words. Love is willing to put others above you, love is to be understanding. Love is the kind of friendship which has reach its deepest purity. Love itself is hard to defined, but the term love was meant to have a positive connetation.
Love does not destroy humanity.
People don't kill because of love..if so it is no longer love, it is now called hatred
People don't abuse others because of love...if so it is now called selfishness
The word itself is not the purpose, rather it is a term sued by us to try to quantify such inexplainable emotion.