Look, at the end of the day you're either fine with Visa deciding what you can and can't play (censoring perfectly legal games) ... or you're not.
Also, it's important to understand that it's not just the banned games that you won't get to play: this will have a chilling effect on any future game that might have considered "pornographic" elements ... because game makers (fearing delisting) will now avoid anything that's even close to controversial.
You can clutch pearls all you want:
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But this isn't about protecting children: it's about censoring adults.