>But the consolidation of banking institutions in the real world is pretty clearly mirrored in the cryptoworld and that side of banking is already far less reliable than real world banking.
Crypto doesn't have "banking". Exchanges are fairly centralized, but it's a misuse of the technology to use an exchange for custody. There are some crypto lending platforms, but they are not banks.
>...most crypto currency is legitimately held by speculators which can create liquidity to drive transactions but which, on its own, does not a market make.
Liquidity is provided by market makers, who (by definition) are not holding or speculating.