If your bank does, you could look into a lawsuit. If the govt has classified btc as an asset and not currency then according to their guidelines you're making a legitimate purchase of assets no matter the cost and your bank has zero rights to decide what you can and can't buy...and as bitcoin "assets" are not banned nor illegal, the banks freezing your funds or closing your accounts is unlawful.
You could file lawsuits against them and then probably move your funds to a credit union...not perfectly safe but way safer than commercial banks.
Or do the safest thing and ask your bank before you use them for Bitcoin-related things. Get it in writing or something, and then you have an official way of protecting your account.