His claim was that the American soldier was " superior to all others" which is horseshit.
Yes, the U.S. made a difference in WWII. But I don´t believe that lend lease was crucial to the Soviet Union. In 43 they had broken the backbone of the German army and would eventually reach Berlin without American aid. But it´s a topic that belong in another thread.
You Americans are always a little hostile when one mentions your role in the liberation of Europe. But you tend to downplay the Europeans and especially Russia's contribution. Broadly every country in Europe was part of the struggle and many participated in British uniform.
You often mention that you have family members who fought and died for the liberation of Europe. They have my deepest respect. But it´s as if it comes back at you that there are many in Europe who also have.
I had two great-grandfathers who participated. One in the resistance movement (he was 19 when he was captured by German security police and tortured) the other as a volunteer in the British Army 1940-45.
For the help we received from the United States during and especially after the war, we are thankful. But don't put yourself on a pedestal.
Said amicably
Cheers.