[m4rtink]

Arent Visa and Mastercard defacto global monopolies that have had many controversies in the oast or bowed to outside pressure, refusing to handle payments for many perfectly legal businesses ?

[hombre_fatal]

Yes. And they get some of your money in almost every transaction. Does that mean you are morally justified to dine out for free now?

[beeflet]

The metaphor doesn't work because I can still pay in cash. A better metaphor would be choosing not to tip the waiter because you don't believe in the custom of tipping

[Workaccount2]

mono, like in monopoly, means single. They would be a duopoly. Which they aren't anyway because there is also amex and discover. So maybe a quadopoly?

[baobun]

Oligopoly, typically.