The Pacific was a predominant American campaign.In all the many episodes of the pacific war, narrated by a very sombre American voice, no mention what so ever is made of British involvement, To any young student of military history watching the episodes, it conveys America as the sole liberators of the many islands , and totally ignores Britain's involvement, its the Errol Flynn, and john Wayne syndrome, only on a much greater scale.
That’s where their main focus was. The were involved in Burma and Guinea as well alongside other allied troops, but the Americans give those areas less mention as it wasn’t the main focus.
It’s a bit like the Italian campaign. It’s often forgotten about as the main focus was Europe for the U.K.
I don’t think it’s dismissing the involvement of other troops in those theatres . It was such a mammoth undertaking that you couldn’t cover the whole thing in detail from all perspectives.
The world at war tried, but even that fell short. It hardly touched on the Hungarian involvement in Stalingrad, or the Syrian campaign with Vichy.
Many documentary’s these days are commissioned to keep a certain target audience aware of a certain part in history. Not necessarily to teach.
It’s t same with the Holocaust. The Red Sea pedestrians will never let the world forget about what happened to its people. Other groupings such as the LGBTQ brigade get upset that others aren’t pushing their history.