Then you KNOW everything I wrote is factual and true, so why claim it is nonsense? Just asking. As for all of the German AFVs being crappy? They had about 1300 PZKWIIis and another 300-400 PZKW IVs plus numerous Flak 18s and 36s, which were more than field expedient to deal with the Russian "heavies". They were cheese whizzing the Russian armor like it was not even there. Let's get real shall we?
USA found how difficult it was to counterattack with towed AT guns, and those 88s were big targets, as were their prime movers.
In 1941, most of the Mk III were 37mm, With the J model the first to be delivered with the 50mm KwK 38 L42. After June 1941, E,F,G and H were regunned with 50mm guns as conditions permitted. Ther were maybe 800 50mm armed Mk III available for the invasion
The low vel 75mm not much good till HEAT production was ramped up for them in late 1941, on finding the first series Gr.38 Hl HEAT shell had real issues, as in not penetrating for their rated performance. Russia was their first combat use, having just missed France. The 'A' series used a steel liner that worked reliably, but no large numbers of that reached the Front till 1942