I guess you are just speculating according to your own understanding but I will tell you that centralised system will not die just like that. Right from origin there has been financial crisis or bank facing bankruptcy, but that doesn't mean all bank will fold for one bank mistake. You should also know that what happens to bank has happened to cryptocurrency exchange like binance, mt Gox and many other exchange that expirenced such a tragedy as hack, yet people did give up on crypto. So the case is vise versa for both centralised and decentralized finance and one should not be neglected for the other. Both will always work side by side because the beauty of money is to work in different forms. Meaning both centralised and decentralized.

I don't really understand your point when you said the financial system will not be taken to the new World. But the aspect of still Insisting on crypto taven over banking system, I have already explained myself above and will not repeat myself.