Visa, Amex, Mastercard, will continue to dominate. Bitcoin really has no place in the financial world in this aspect....
The flaw in Bitcoin is the people who are blind to the real reason WHY it is not flawed. If merchants refuse to implement SegWit, is Bitcoin flawed? If miners jump from BTC mining to BCash to create congestion and to push up the fees, would you say that it is Bitcoin's flaw?
When Legacy Bitcoin is spammed with worthless transactions to create congestion, is Bitcoin flawed?
The real flaw is GREED.
If bitcoin doesn't take into account "GREED" which is inevitable, than yes it means Bitcoin is flawed.