It wouldn't even work if you started your own bank. They could still cut you off. I forget the group involved, some three letter thing starting with A, but basically if Mastercard -- who has been subverted -- says no, you can't transfer money between your bank and other banks.
Until regulation or a successful lawsuit about this is brought up, it's going to keep happening.
I believe just using standard crypto would work, at least until that's subverted, too. IIRC the big name crypto sites already have been proven to blacklist people that piss off the SPLC.