Every Net Neutrality expert warned you this would happen without a strong regulatory framework to ensure equal access to every part of the world's internet backbone.
With out that access there is no right to speech, there's no right to repair, there's no right to own. So, yes, there's no right to buy.
The payment providers, ISPs, and advertisers are all in a Mexican standoff with the unarmed customer in the middle. Like all such standoffs, there's only one way it can end.
Steam has quietly updated its adult content guidelines and removed some adult games from the store, after pressure from payment processors like Visa and Mastercard.