Well... not only does that have nothing to do with the point, but had the United State not been feeding your asses, then if would have been hard for you to fight. Moreover, if the British not have obliterated the Luftwaffe, and knocked the Nazi invasion schedule off several weeks, then the Germans would have steamrolled you guys over pretty quick.
Actually, during the crucial period in which the Soviet Union stopped the German invasion - up to the battle of Stalingrad, allied supplies were much less than in the later period. After all, this was the "happy times" for the German submarines and convoys for the Soviet union were stopped altogether a few times in 1942. So the Soviet Union survived mostly on their own. The supplies undoubtedly speeded up the subsequent Soviet advances, but they've probably could have won without them, though it would have taken far longer and with far greater casualties.
The British severely damaged the Luftwaffe, but certainly didn't obliterate it, considering how it managed to destroy most the Soviet airforce on the ground on the first day of the invasion.
And the delay in the spring of 1941 was not so much because of the British, but because the Serbs, whom you hate so much, refused to bow to Hitler.
In any case, even if the Germans had reached Moscow, they wouldn't have taken it easily. The city was very strongly fortified and would have been an ideal trap for the German army, until the reserves from Siberia arrived. And with Hitler's unwillingness to retreat, you can easily imagine what would have happened.
The Russian idea that they could have won on their own is probably untrue (unless the invasion is not surprising). Of course, the even more doubtfull idea that the US could have won on their own (or even that they
did win on their own) is rather popular in the US, so Russia isn't the only country with myths about WWII.
And I question your basic assumption, as well. Soviet resistance behind the line in real life was relatively insignificant compared to what was going on at the front.
Soviet resistance tied up probably more German divisions than were tied (until 1943, at least) in France.
But, I'll bet they didn't teach you that in Soviet school
Soviet schools, though unfortunately burdened with foolish ideologies, still managed to achieve more in 10 years than US schools manage in 12. So your jab sounds rather foolish.