A Darwinist would argue that natural selection is opportunistic.
No, I’m not a Darwinist. Maybe a Hemidemisemidarwinist. Natural selection is a thing, observable in human timescales. But spontaneous emergence of self-replicating cells from lifeless matter, that’s something else.
Microevolution makes sense to me, but macro does not.
That, of course, doesn’t even touch life from nothing.