This is a concept I put forth in my most recent talk about braids: "equal pay for equal proof-of-work".
Self-reference...
Selfish mining is killed by a combination of braiding (no more orphans), and removing the asymmetry by ensuring all valid PoW hashes earn a block reward.
...and a bold claim without any proof.
Sorry for disturbing you, I'm out from this discussion because I don't have time for a discussion in TPTB's style
.