1. No it isn't. Credit card fees are far lower than this. https://www08.wellsfargomedia.com/assets/pdf/small-business/...
2. The "don't like it / go vote" argument is lazy, and again, really doesn't apply here.
> In general, merchant processors will likely offer you an effective rate somewhere between 2.9% to 3.3%. You can try to negotiate that down, especially if you have high sales volume.
[1] https://fitsmallbusiness.com/credit-card-processing-fees-2/
My point is that, actually, no, they don't really. The visa+MC per transaction fees are actually quite low, unless I'm reading that wrong.
Again, this is a complete sidebar to the actual point, which is that banks are just rent-seeking because they can on these loans.