This had nothing to do with the USA. It was triggered by an Australian group of christofascist Karens, called "Collective Shout," leading to adult titles being removed from steam. Steam already region locks titles, so it would be easy for them to block titles for sale in countries with laws about NSFW matierial. What's unique about this is the christofacists put enough pressure on payment processors to shut down Steam's ability to sell anything in any country. The title pulls weren't the result of government pressure.