How hard is it to realize that Britain didn't surrender to the US? All that happened was that the British Empire had to face the Geopolitical and Economic reality of the post-war world. They can no longer act as the world's superpower and policeman. What the UK did is more like a "retirement" than a "surrender". The UK had become small potatoes compared to the United States and Soviet Union. They realized this and made sure the United States would come out on the world stage to fight the USSR once WW2 was over, instead of going Isolationist. Your first two examples could be perfect examples of this because one gives the US bases all over the world for Military power projection while giving the UK needed ships for its Navy and the other would get the United States to have a sizable presence on the world stage after WW2, while securing an agreement for the nature of the post-war world when the war was going through uncertain times.
Your last example is getting Economic cooperation between the US and the western world for after the war
Whether you call it a "retirement" or a "surrender", the fact is that after WWII the UK has not been able to act as an independent player on the world stage. The Suez crisis is a case in point. Their colonies were opened up to American investment and trade through decolonization. The Americans took over the role of dominant naval power. The UK was reduced the the US's junior partner in the new Western Order, and would no longer pursue it's own national interests abroad if they conflicted with American interests.