If he cedes to the pressure, odds are he will so completely destroy his popularity that he won't even be able to be a candidate. He almost certainly knows that.
The pressure is irrelevant. Pix is not going away.
Why would you let America take 2-3% of your transaction volumes?
It perhaps made sense when the technology was difficult, and America was trusted, but ...
Visa charges only a Assessment fee the majority goes to Issuer Bank +PSP.
E.g: Interchange fee (0.8-1.8%): Paid by acquirer to issuer (card-holding bank)
Assessment fee (0.1-0.3%): Paid to card network (Visa, Mastercard)
Acquirer margin (0.3-0.8%): Retained by merchant’s payment processor
I don't think VISA/Mastercard takes such a fee? (They'd be some of the biggest companies in the world if they did.)
The fees they charge are actually fractions of a percent, the rest are charged by the card issuer, which is usually your bank.
You could, in theory, use the VISA network and not pay those fees to a card issuer.
And yes, every country should have this. Even America
Many of the european countries have their own "Pix", but there's no European-wide alternative. The ECB wants to make one (tentatively titled "digital euro"), but it's going to take a long time to come out.
What happens also is that many sellers provide discounts when using Pix, because you dodge the expensive fees charged not only by Visa and MasterCard, but the fees operators charge to provide the infrastructure (PoS machines, financing for installments, etc, the last one being quite common in the country) to use these networks.