Sounds nice doesn't it? Unfortunately it's all a crock. Unconditional love is simply nonsensical.
Think about it. What is it to love someone? This could be defined in many ways, and, in all honesty, I don't seek to define it perfectly at this moment in time. But I think a big part of it that we could all agree on, is that loving someone involves valuing some traits that they have. In essence this means that love, in part, stems from some value you have represented in that other person (ie I love cake, they have cake, I love them etc...).
Let's use an example; I love Vicky because she's smart, compassionate, and positive to name a few traits. Without these traits (intelligence, compassion, and positive attitude) I would either not love her, or love her less. Often when we're in love we're asked the common question 'why do you love x?'. In such situations we easily come up with reasons of why we care about the person. Essentially this question showcases something about love. That being the fact that we should be able to come up with reasons for feeling it, these reasons (hopefully) being based in fact.
Unconditional love is the opposite of this. It is loving someone despite themselves. When a parent says they love their children unconditionally, what they mean to say is that 'I love the fact that I have a child', or perhaps 'I love the idea of my child'. However they can't mean to say they actually love the child. If a parent continues to love a child despite them not liking anything about them, they are not loving that child they are loving something external to the child. As a being (child) is made up of an infinite amount of traits, and if none of these traits are loved that being cannot be loved or valued (this is excluding the concept that he is loved for the collection of his negative parts). The love is instead latching onto something external from the being. Its that simple.
If I am traits.
And if I am loved despite my traits.
Then I am either more than my traits, or I am not loved.
And if I am loved despite my traits.
Then I am either more than my traits, or I am not loved.
Simply, loving someone unconditionally means loving that person regardless of circumstances. Yet as people are determined by circumstances, loving someone regardless of circumstance involves loving them regardless of their identity. This is not so much 'loving someone', as it is 'loving at someone'. And I would argue that 'loving at someone' is in the category of obsession rather than in the category of love.