Right - Visa, Mastercard, Apple, and Google are walled gardens and should, in my personal opinion, be held to a somewhat higher standard in terms of free speech (Yes, I know that the first amendment doesn't apply to companies. I'm just saying how I think things ought to be, not how they are). It's unreasonable to expect consumers to get a new credit card or buy a new phone to use your service. But companies routinely choose alternate DNS providers and lots of people buy things that aren't on Amazon.