sorry you really do need to read your history, before making idiotic statements like that the lend lease loan was repaid:

Payment was to be stretched out over 50 annual payments, starting in 1951 and with five years of deferred payments, at 2% interest.[27] The final payment of $83.3 million (£42.5 million), due on 31 December 2006 (repayment having been deferred in the allowed five years), was made on 29 December 2006 (the last working day of the year). After this final payment Britain's Economic Secretary to the Treasury, Ed Balls, formally thanked the U.S. for its wartime support.

As to World War I, the US stayed out of it till 1917. The American presence made little or no difference to the final outcome.

It should also be noted that the US were not the only country loan the UK money for reconstruction, Canada also did, and they were repaid as well, so...the UK owes you nothing.

by the by Bennett, who's "we"?