Oh good. I'm glad you agree we will see the largest genocide in history in our life time. People are usually a lot more optimistic than me about the future.
I don't see it as the largest genocide (not that I consider it positive). The Borg didn't kill, it assimilated. Considering that the absolute majority of people in the future will be cloned, the assimilation of old timers (that's us) is going to be seen as a minor event and probably not even a genocide as we will continue to live, I personally think it's going to be seen as our salvation.
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IMO there is one thing that seems to be truly unique and irreplaceable - consciousness and its continuity, and control over it. That is probably going to be prized.