The truth is payment processors and networks are threatened by Bitcoin and cryptocurrencies in general because the superior technology they provide to traditional payment systems poses an existential threat to the legacy financial system. They have been trying to kill Bitcoin and have tried various tactics in the book. The latest attempt to limit access to crypto but stopping payments on credit cards and payment processors will just end up being another failed attempt to kill crypto. It might cause some short-term downward price action, but Bitcoin has weathered all such storms in the past and keeps advancing.