Sure but isn’t allowing those company to pick and choose what industries they service a dangerous precedent? They’ve monopolized the consumer credit markets and as such, can use that weight to dictate competition in consumer markets.

Their point is it isn't just a couple companies arbitrarily making these decisions. It is a vast network of banks and merchant services companies.

Ideally, you could take your business elsewhere. The problem is providers that handle these industries will expect a premium across all transactions and it would come off badly when customers see that large percentage added to each purchase.

So you have the decision of: your customers pay a premium or you don't carry adult material. If all your business is adult, it's an easy choice. You pay the premium.

This activist organization is pressing them until they are forced to make that decision based on a small amount of their hosted content. This is what I see as likely. Admittedly though, there are not enough details given to say for sure.