So the upshot of BTC, is its about unfettered and inalienable rights to access block space, a decentralized ledger with zero counterparty risk in a known supply system.
Lots of people are buying bitcoin in order to sell for a quick profit without caring one jot about using it as currency. They are creating a ponzi bubble on top of the value of bitcoin as utility. Normal ponzi scheme collapse when "the game is over." Bitcoin ponzi bubble will collapse, but bitcoin will still exist and continue at the correct value.
This is crap and i suspect you know it. No one has unfettered and inalienable rights to access block space, when miners can decide whether or not to include one's tx. Turning each block into a fee market is insane and bad economics by the illiterates.
I did modify my defn to:: "BTC is necessary but not sufficient access block space. Its is sufficient when you have enough residual to update the ledger, after fees"
Also I am not limiting my argument to BTC but to cryptos in general, so fees are much lower on LTC and BCH for instance.