You're not entitled to Square or Visa or Paypal or Mastercard payments. If you're reduced to cryptocurrency and cash, it is what is is. Profiting from your speech in one specific way over another is not enshrined in some code of human rights.
I think "ability to make a payment online" should be in the same category as utilities. Someone having to go cash-only is just as bad as if the power and telephone companies refuse to sell you service. It kind of is a "basic needs" problem.
Pretty much all personal bank accounts have a unilateral termination clause. I would be surprised to see a mortgage where the bank can't totally wreck you if they feel like it.
Anyhow, you still need a bank account to get paid. If you can only work jobs that pay you in cash and don't need any access to bank accounts or the Internet themselves, that rules out 99% of businesses that could employ you.
Should you start your own DDoS protection service too?