1) I said BTC failed as a currency. And yes all the people currently holding cryptos are indeed claiming it's an asset, but they all have one thing in common: They gave their REAL money to someone else in exchange for nothing. You purchased a jar of air with the word "Digital Gold" printed on the side of it basically...with the reasoning of "If everybody treats this special air as Gold, then it might as well be Gold"
2) Neither Credit Cards nor PayPal are money. They are technologies for HANDLING money. A technology for handling a thing is not the thing itself. Not a hard logical axiom to grasp is it?