Cryptocurrencies need to be banned to help stop these attacks. If corporations in the West cannot buy the coins legally, they will not be able to pay the ransoms, and the attack frequency and intensity will fall.
On top of that, we'll also reduce electricity and computer chip waste, since mining activity will decrease as the price plummets.
Its a lot harder to justify huge attacks when your payment is in gift cards, compared to semi-anonymous crypto that can be cashed out in your 2nd world country of choice.