-Removed-If God is never changing which I believe we both also agree with, then at no point
can God be anything other than what God is.
So God is love, yes.
God is good, yes.
God is just, yes
God is who He is, and will act in ways that agree with all of His traits!
He will never act in a way that not love, good, just, so every attribute is always satisfied
at all times, since He never changes.
Can we agree on these points?
-Removed-If humans are capable of unconditional love (which I believe they are, irrespective of theistic outlook) then it 'has' to be the case that humans are capable of altruism.
Take the father who runs into a burning building to save his child. This act is both a demonstration of unconditional love and altruism.
Unconditional love means letting the one you love do what he has to do.
Unconditional love means that the one you love doesn't have to do anything to deserve love.
The paradigm case is that of a new mother and her suckling. The babe doesn't have to do anything to deserve to be loved; the mother just loves it, even when it does what it has to do: barfing on her shoulder and poo-ing its diaper.
Unconditional love does not mean that parents must accept everything that their child does, such as lying, cheating, stealing. It would be irresponsible of parents not to prepare their child for adult life in society, where laws and rules and moral principles apply, and this will involve corrective measures (possibly but not necessarily including some form of chastisement, depending on the cooperativeness of the child).
Now, try to keep on loving that child when it's 18 and poos its life. That's when it gets tough. But it is possible.
