I the US it's mostly due to the fascist tariffs, no? Latin America has a similar issue, tho that's because of the tax system in for example Brazil. Considering the financial situation in Argentina, hyperinflation may make price increases necessary.
Sony, on the other hand, is known to raise prices, and may have been the pioneer of raising prices for their games and consoles. That's why I didn't care for them.
I think you're right that they don't need to be shipped through the US, but they most probably are and will be, and using other suppliers or logistics firms that don't isn't always cheaper, especially with large volume shipments. Otherwise, even if there are consoles in storage, the increase has to be targeted at a whole market to also partially stave off the tariff costs and to unify a market on its conditions.
Also, Sony were the first to raise the prices for games beyond 60€.