I think your conservation scenario assumes 2 unrealistic things:
- that you can always keep the same nominal BTC/BCH balance while consolidating, spending & receiving, while at the same time not trading;
- that not only you don't trade, but also nobody else does!
1) 2way-pegged side-chain
2) 1way-pegges Proof of Burn
3) UTXO-based airdrop
4) fair mining from scratch
5) premined/ICO
...
My point is that strategy 3, while better than 4 or 5, isn't the best, nor neutral to btc users/investors in the long run. But "dilution" was oversimplifying.
Not just oversimplified, but also overall misleading. Thank you @MeniRosenfeld for helping me clarifying.