I definitely agree that btc will never be used as a commonly used currency since segwit/rbf/1mb or 4mb weight cap.But bitcoin can scale massively on chain reliably for less than a cent and process more transactions than visa in the very near future. Bsv /bch bitcoin can already do more than paypal now.
most people presume bitcoin is digital gold but it is much much more than that if allowed to scale onchain with big blocks.
I can see big buissnes onboarding them as its way cheaper than visa and more convenient for intercontinental merchant transactions.
