Regardless of how you feel about crypto (I have never been a fan), the fact that banks and credit card companies have become non-elected dictators regulating all of global commerce should be alarming to you.

A banking license, granted by the government, is quite literally a license to print money via the fractional reserve system.

If we're granting you a license to print money, you cease to be a private business who can choose your customers. You are a provider of government infrastructure, and should not be allowed to block any commerce that hasn't been declared illegal by legislation created by our elected representatives.