[bitreality]

A major issue here is that payment processors literally choose which industries, and which players will succeed. If your industry is deemed high risk by payment processors, you are fighting a brutal battle to accept customer payments. If you can't process payments, you don't have a business. Conversions will drop off a cliff if you try to switch them to niche payment methods like crypto currency, or even something like Skrill.

Even worse, the payment processors do not apply their own ToS unilaterally. You'll find some websites will retain processing, while you lose it, even though the reason is that your business model is high risk. PayPal is notorious for this. Their ToS will only be enforced in certain countries, leaving companies in places like China with PayPal processing while your company is permanently banned from the platform.

It becomes impossible to compete if you are banned from Stripe & PayPal while your competitors are not. If their own rules are not applied equally across your industry, they effectively pick the winners. Their platform also favors long-standing merchants in many ways.

First by providing them an account manager, second by essentially grandfathering in certain accounts. You'll find it very difficult to process payments in certain industries on PayPal, likely not even being successful in on-boarding, while sites operating in the exact same business have functioning PayPal accounts.

It's incredibly anti-competitive. These processors run such a large scale monopoly; there are so few comparable alternatives, I've seen so many people go out of business purely by losing their PayPal.