That's not how it should be. If you want to do that, start your own company...but I am sure you would take the same stand as Apple is taking. Not trying to be an ass, but Apple is a private company (in the sense that it is not government) It is their system, their hardware, etc. Epic signed a contract with Apple (which, most likely, made them the multi million dollar company that they are) and now they are violating the contractual agreement. I think cost wise, there should be a sliding scale based your sales on the app store. Epic seems to have an issue with Google too as it seems that Google is not happy with them going around the agreed contractual rules either.
This is not about "fairness and dignity" as there is not much fairness and dignity is signing a contract and then violating it when you not longer like it.
Lie I said, I'm not trying to be a D**k here, just talking about "fairness and dignity" If you sign an agreement and no longer like, then approach the other party and try to renegotiate the agreement. Or leave the store. Working in television alone with some IT server stuff, I will say that I can't even begin to comprehend the cost of running Apple's app store, Google's play store or Amazon's AWS. It's got to cost 100's of millions per year between hardware, engineering and utilities.