The second denial -- read it
Aka on the way to becoming B ...
... but honestly, I think to become B, you must be past the simple acceptance, on to the third denial. B understands and accepts that civilization was an aberration, something that should never have happened, something that has weakened us a as a species, that held us back from what we were meant to become.
B has grieved that loss, those 10,000 wasted years, and all the death and destruction that came with it, the loss of our potential and our guides, and has come out of the other side, changed. Repentant. Reborn.