Google Maps shows Gulf of Mexico (Gulf of America) to Canadians - it does properly label Lake Ontario, though. The idiocy isn't limited just to the US.

Well technically it also says that in Japan they only display "Sea of Japan" in the local language (Japanese), so displaying just "Gulf of America" in the local language follows. This blog never expected that the USA would be involved in this kind of dispute.

This isn't the current policy

I'm in Germany, it shows me the real name, and the clownshow name. It does the same for Lake Ontario.

When I VPN to other countries, it does the same.

Not sure where you got your wisdom from.