I think you are using the word "sacrifice" as as a verb meaning a voluntary deprivation as in "I'm sacrificing my vacation to paint my elderly aunt's house".
While that would be an accurate description of what Jesus did, the word "sacrifice" is also used as a noun, as in:
"And walk in love, as Christ also has loved us and given Himself for us, an offering and a sacrifice to God for a sweet-smelling aroma." Ephesians 5:2
A sacrifice is a substitute. Jesus became a substitute (noun) and offering (noun) for our sins. Explaining the significance of that means getting into heavy duty theology way beyond my ability to capsule in a few words. But I'm just pointing out that to understand Jesus' sacrifice, you have to understand both meanings of the term.
I'm sure you have gotten the response that Jesus' "sacrifice" was "voluntary deprivation" in the extreme (which it was), but I understand why you might not think it was that big a deal given a Divine perspective. But you have to dig into the other meaning of "sacrifice" to understand the full meaning of what Jesus did and became.
Hope that advances the argument for you.
Powerful. That simple distinction speaks volumes on this issue.
Something I missed completely in my response.
Thanks for the reply. I hadn't thought of the other meaning of sacrifice for this, although I've read that usage througout the Bible. I'll read up on that angle some more. OTOH, my initial thought is that would be God sacrificing to himself, still not much to be a cornerstone of the most important world religion.