I'm not usually one to go full market capitalist, but there is definitely a market solution to this one. I'm glad they are exploring the options.
Or in this case: itch.io switches to CCpay instead of Stripe as mentioned in the article. Because Stripe was actually the problem here, not Visa/Mastercard.
I still will highlight the closure of Manga Library Z (which Visa/Mastercard is to blame). But this itch.io problem was different.
This would only be true if it was possible—as in, actually realistic and doable—for anyone to enter the market.
Do you really think there's a shortage of people who would like to start a company that gets an easy 3% per transaction?
Also, that 3% doesn't go to just Visa/MC and the other card brands.
It goes to the payment gateway, the payment processor, at least one level of sales organization, the merchant bank, and the POS company in the case of in person business. There are several intermediaries that get a slice of the pie.