[Scoundreller]

Then you have failed to counter the claim of "One of the primary arguments in favour of cryptocurrency is avoiding the fragility of fractional reserve banking."

[jpmattia]

Most people would define fractional reserve banking" as a bank* that loans out a fraction of its reserves.

You are of course free to equate that to "your self-hosted BTC wallet", but I doubt it will gain much traction as a definition.