I'm sure all nations would comply.
Well, since it would be just our territorial waters within that ocean being renamed, they probably would. Doesn't make the idea less stupid. In fact, it makes it more stupid. It will be like that period where Prince renamed himself O(+> (roughly drawn out), where no one actually uses the name except in "official" circumstances where they absolutely have to. Except when Prince did it, it was a smart move designed primarily to get out from under Warner Bros. Records who barred him from using his legal name until their contract expired. This is just mindless pandering.