In hindsight yes, most of this is true, but it is not guaranteed that all of this would have happened. Wehrmacht rapid advance was stopped, but it didn't yet m

In hindsight yes, most of this is true, but it is not guaranteed that all of this would have happened. Wehrmacht rapid advance was stopped, but it didn't yet mean pushing them out would have been possible without tremendous material support through lend lease, without what there wouldn't have been any adequate Red Army logistics and armor. USSR was able to produce around 40 000 tanks and this force overwhelmed German armor capacity, but they were able build this much only considering that US provided 400 000 trucks, if it was not so, considerable amount of tank building capacity would have to had been shared to build trucks, but even then the steel to build tanks came from US. On top of this USSR got 14 000 planes and also rail wagons and engines. If there was a pipe dream then it was Red Army countering Wehrmacht without US material support. Russians like to minuscule the importance of US support but it was substantial and most likely essential for their victory.