The Nazis could have defeated the Soviet Union is WW2 in 1941

I challenge your contention that the Nazis could have defeated the Soviet Union during Operation Barbarossa (June-December, 1941). 1. The Nazis may have been well versed in Blitzkrieg, but the style has one fatal flaw which would have caused the offensive to fail anyways. Contrary to popular belief, Blitzkrieg relies heavily on its re-supply units due to the fast consumption of fuel and ammunition. When Nazi Germany invaded the Soviet Union, the Re-supply units struggled to keep up with the blitzkrieg slowing it down considerably. This was initially due to the differences in railway gauges and dismantled railroad facilities. In addition, Nazi logistical plannings severely overestimated the condition of Soviet roads, as many roads on the Soviet maps were simply either in their planning stages or didn't exist. In addition the Soviets used a scorched earth policy to deny the Nazis Soviet supplies which coupled by the over strained supply line is a recipe for disaster. 2. The Nazis never took into consideration the harsh Russian Climate which includes; muddy terrain aka Rasputitsa in the Spring and Autumn, which would have hindered the Nazi Panzer corp while Soviet mechanized corps could freely retreat or engage the Nazis. In addition to Rasputitsa the land would be sandy in the summer also hindering troop mobility. The Nazis were doomed for the Winter as the harsh cold would have stopped the Nazis dead in their tracks as their re-supply units were prioritized to send in ammunition and fuel instead of the basic supplies needed for winter warfare. Regardless of the season Russian soil was at the time indisputably harsh terrain that hampered the Nazi Blitzkrieg. 3. The Nazis also underestimated the resiliency and adaptability of the Soviet Union after the initial Soviet defeats and capture of approximately 2.4 million Soviet soldiers in Operation Barbarossa. The Soviets dismantled key armament factories and moved the contents and engineers east beyond the reach of Nazis denying them potential engineers and war materials to take down the numerous T-34s, KV tanks, and the Soviet Union itself. In addition despite the Nazi advance reaching the Spires of Moscow the Soviet regime wouldn't have collapsed as Stalin would move East to another city and resume war plans. The Soviets also moved veteran troops from the far east who were already skilled in winter warfare to the front pushing back the Nazis from Moscow. The Soviets could also replace destroyed divisions with more conscripts which allowed the Red Army to survive as a cohesive unit during its continual losses. 4. No Imperial Japanese Support Because Japan abandoned its Hokushin-ron policy and focused on a Nan-shin approach of expansion, the Soviet Union was allowed to pull troops from the Far East as the Empire of Japan did not pressure the Soviet Union as Nazi Germany expected to causing the Nazis to face battle-hardened divisions skilled in winter warfare. 5. High casualties In addition the Nazis lost 734,000 men out of a force of 3.2 million in a span of five months. This coupled with being bogged down forced Nazi Germany send in more men and caused the decisive and fatal blow that allowed a Soviet Surge into Berlin.