"Let's annex GB"
Can you imagine how leftist the UK is by US standards(Blair included)? There would go ANY chance of a GOP victory.
If they are facing extinction, ally with Spain and GB.
Great Briton could become a territory until they learned where their right hand, politically, was. AAMOF, a Royal Air Force Group Captain, who flew Spitfires in WWII, once told me that; "Britains' biggest mistake was not to have become the 49th. State of the US after the war". He wasn't smiling as he said this.