Two things 1 you still have defined love as anything, even an emotion and 2 unconditional and undifferentiated do not have the same meaning
love that makes no difference between self and other self is unconditional, undifferentiated. unconditional love contains all conditions inclusively and no condition exclusively.
the self as a whole must be loved; otherwise self would seek destruction. self-preservation is first love.
Can it even exist without conditions or differences? Even you say all beings may not manifest it. That's saying it is a thing and conditions have to be met to manifest it.
i do not understand the query. please requery; unless you understand that all conditions are met in loving all undifferentiated, or as one. what is called oneness.
What is love of others as self?
that which appears separate from self in the illusion but cannot be separate in nature. all is interdependent.
Why is it different than love of self? You indicated it is a different type of Love.
can be seen as those who abuse themselves but not others because of the illusion of separateness.
Unconditional Love is not real any where. Even Gods put conditions on there creations. It will never happen because it is not possible.
if unconditional surrender is possible to the winner of war, is it not possible for self. that which wars within itself is already half of each polarity, whole of no one. know thyself.
“If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.”
― Sun Tzu,
The Art of War
Gospel of Thomas saying
(70) Jesus said, "That which you have will save you if you bring it forth from yourselves. That which you do not have within you will kill you if you do not have it within you."