You are correct, I don't think not being able to purchase porn games rises to the same level of danger as unsafe food or climate change, to require the government to tell businesses how they may operate.

> With your logic we should have just waited for free market competition to kick in Cocal cola and McDonalds to deiced on their own to stop putting arsenic into our food.

I don't think that's a fair comparison. No one is dying here. I do think the government should step into this market and perform major intervention by breaking up the big two companies into many little ones who can compete. After that, some payment processors may choose to support these business models despite the hit to their stock price (or whatever Visa's dumb argument is for not allowing these games).