I like that notion of 'E- Primitive', that's some fantastic work gone into that, with I'm sure lots of rewards for anyone who actually tries to implement it! It's interesting to consider what abolishing 'to be' would look like... I mean there are multiple languages without that verb - Arabic for one, and they are as civilised as the rest of them. But attacking the idea of 'I'm a farmer', no, what you mean is ' I farm'. Getting rid of essences altogether. Familial relations would certainly look different, and I can imagine a radically different approach if one was to take that to its conclusion.
I'm not a father, fathering is what I do. Likewise for brother, sister, mother etc. Which means that people are free to behave as they want to - to be a father to someone, or a brother to someone, without all the nonsense of 'but who's his REAL father'. Seems much more human and spontaneous and local. I like it a lot.
I wonder if anyone has linked that thought into patriachy, I mean that the family as an authoritarian structure is defined by the father as in control. That would be totally undermined if being a father was an activity and not an essence!