[Retric]

This assumes Bitcoin survives longer than BCash.

It’s not the store of value that will keep a chain alive but rather a stream of transactions sufficient to pay enough miners to survive repeated attacks. All it takes to kill a chain is more resources with incentives to kill it than incentives to mine it.

PS: Hashing power also assumes the owners of that hashing power control their network. A tiny group of hackers with limited capital could take over a coins network.