You're damn right that a business owner will lose his sales and his profits if he doesn't give customers what they want. Which usually includes paying by card. Your option would be to take away the options and freedom from customers to decide where and how they spend their money, which has been tried already and became a total failure called the Soviet Union. But I guess hackers are much more enlightened and will succeed where every one else failed...
You're damn right about lemonade stands also. A business whose owners refuse to give customers what they want usually doesn't grow much, and stays small. Then they cry that they are oppressed by card processors or by middlemen, and only on HN will you find people who actually take them seriously.
Only in a tyrannical world should business owners have a right to make a profit without a duty to tend to their customers needs.
No they don't. We're not talking about lemonade stands here.
Business owners don't have a choice. They must use CC processors or else lose their business. That's the point.
You're shoehorning a philosophical definition of freewill into a context where it doesn't apply.
Given that consumers and businesses have "freewill" or "freedom" to make any financial decision, then by your logic there are no bounds a company can possibly transgress.
Why do you think we have anti-trust laws, or consumer protection laws, or the FDA, or have litigated against monopolies in the past, or have the host of many other things which protects consumers from being taken advantaged of?