"The experience of no need to find the necessary emolument."

[Icipher]

The love of yourself AS part of oneness, as you term it, is loving all, including the individual self. It is not choosing to love others vs the self; it is loving both (and therefore realizing they are one). There is therefore no sacrifice but only all encompassing love and acceptance. And loving the self alone is indeed, as you have written, living in a paradigm of separation, an experience where only the individual self or an individual part of the self is loved. It is in this illusion of separation that perhaps an individual will experience sacrifice.

You finish your post very well with "universal love includes the self, it does not exclude the self in any way". I could not agree more and that is why I see no sacrifice in it whatsoever

EXACTLY! Sacrifice is a concept of division, and is only a method of breaking the mind/body/spirit complex of the false notion of separation, rooted in red-ray insecurity.