I think one of the points of Bitcoin is that we don't need banks for this kind of thing. There's some ethical banks about and I'm sure there will be banks that are happy to accept or deal with Bitcoin related funds in the near future, but they're not needed to buy coins as there are other options available.
Actually. That is the whole point. No bank is required.
That's too much of a simplification.
If the world goes full bitcoin, you might not need a bank, but you may well still choose to use one. Banks of tomorrow will offer value added services around blockchain based assets, services like secure offline storage, insured online storage, zero confirmation payment guarantees, a whole host of advanced personal finance management and finance oriented social community/networking products. Traditional brokerage and asset management also stays.
The point is that right now points of integration with fiat systems are needed to help drive bitcoin adoption and uptake, it is not (just) anti bitcoin sentiment that is stopping our current crop of banks from adopting bitcoin with open arms, it is risk, regulation, profitability and the sheer inability of large organisations to adapt at pace.
So... go build a bank, if you don't someone else will.
how do we do that plain and simple? 