Fully integrate with US is exactly what they'd do and have done since at least Iraq 2003.I agree in the strongest possible terms. This is a 2nd or a 3rd tier force that simply cannot operate independently in a peer-level conflict. Forget sustainment, the only way the Royal Navy would be useful in a Pacific War, is if they simply fully integrated all of their ships/personnel under a US chain of command.
British Armed Forces in totality, need to have a serious conversation about what their priorities are, and what is truly a security concern for the realm. UK can meaningfully contribute to helping USA fight in the Pacific, but attempting to create their own CSG is just not it. But I get it. This is a country that's confused about their own destiny and their own aspirations, which is reflected in the nonsensical politics of UK. Their own electorate is unsure of whether it wants to be part of Europe, the long arm of United States, or a truly sovereign state.
Until UK determines what its interests are, they cannot construct a meaningful battle force that would credibly defend those interests. This is a country that has had Theresa May, Boris Johnson, and Liz Truss as national leaders. People who stand and believe in nothing. Which is perfectly mirrored in the state of their armed forces.
Liz Truss stood for something. It may have been something batshit mental, but it was something. BoJo only ever stood for himself.