the problem is, that the argument being put forward is that the british AF was completely and 100% dependant on "US charity" You cannot get to the right conclusions from that point. If you accept it, then you will come to the wrong conclusions Fore example, if that position is allowed to stand, then it can be argued that all the Spitfires and Hurricanes etc that were built, might as well have not been built, because they have no military worth.
I know its a stupid argument, but the discussioon cannot move forward until the stupidity is withdrawn
Very true, looking at things out of context always leads to wrong conclusions. RAF, as other parts of the armed forces, was assisted by convoys and LL equipment but its them that did what had to be done in the air to defend their homeland. In that struggle, Hurri and Spit played important roles, regardless if the steel used in them came from UK or the US.. What woul stop the British from designing an all-wooden Spitfire for example?