I totally agree with what you have said. Banks will never accept bitcoin and they will never want people to use bitcoin for their own good. No bank in the world will be able to offer such type of return which bitcoin is giving to the people. Within a year, I have received over 70% profit from my investment. This kind of return banks will never be able to afford.
Also bank has a legal limitation about accepting bitcoin in to their regulated environment. Bitcoin is not controlled by any central authority. That is another main roadblock.
I bet to differ because the Bank of England made a consortium of 50 English banks; those that are completely rebuilt on a model based on blockchain technology. So I believe they will eventually integrate into a blockchain bank or something like that in the near future rather than a complete wipeout of the banks.