So you think Ripple can't exist? It does. It's a centralized entity, business, that provides a solution to decentralize the flow of cross-border transactions.
The only thing that limits your thinking is your will to think!
Ripple? hahahaha that was fun! I dont think that ripple is the next best thing to be honest and if it is the only reason of existance is to be on a major exchange (Which i doubt according to rumors it didnt got into coinbase YET.) so we can exchange altcoins.
Anyway, i agree with you to a certain extend and i can probably forsea the future of cryptos getting highly regulated and we gonna end up with a depply centralized and look-a-like decentralized currency(s) in our wallets.
One thing is for sure, either its going to be blockchain or hashgraph or whatever, this technology came to stay and its going to stay for SOOOO LONG!