To be clear this merely an exercise of what went wrong and how they could have won, it’s not like I wanted the Nazis to win World War 2, I mean who does?
After an extensive study on the matter, through reading several historical forums with analysis from historical writers, professors, and enthusiast and came up with this conclusion, while incorporating a great deal of their own thoughts and information they have provided me.
Hitler was charismatic, that is why he was able to sway a whole country to such acts of violence, but unfortunately for them he was a bit of an idiot. As there had been numerous ways for him to have won against the Soviet Union, as a matter a fact he could have won the war if he thought tactically rather than emotionally (his hate for Jews and everyone who isn’t German). I’ll give you an example or two of what he could have done to win the war.
Made and Used More Allies
During his invasion of Russia many thought of Germany as liberators, as a good amount of countries under Soviet control hated the communists. Had Hitler utilized this, which was the plan in the first place, he could have had an additional Ten Million soldiers he could train and throw at the, at the time weakened Soviet forces. But he decided to forget about the original plan and piss the locals off, and the powerful dormant force was used against him and his Reich instead.
In addition to the forces he decided to turn down and piss off, he already had allies in the east, had he asked the Empire of Japan to attack the other side of the Soviet Union, their forces could have been stretched out too thinly that they would have eventually collapsed.
Finally there was Spain, who merely asked to have their government debts forgiven and they would become a full ally. You see, the Allied forces and Russia might have defeated Nazi Germany in battles, but it was Hitler’s pride and arrogance that caused them the war.
He Could Have Won By Being Patient
Had he just continued on with the attack on England, just as originally planned, and not immediately pick a fight at the eastern front, he would have been able to defeat the Allied forces first and then concentrate on the Russians. He ended up needing to fight two fronts, which for an already thinly stretched out army, is a complete no-no.
If you look at things in hindsight, it looks like the Germans could have easily won the war, and make “the man in the high castle” Universe a reality. Hitler allowed his judgement to be clouded by his arrogance and hate, in addition to not learning from the examples and lessons learned by men of history, for example Napoleons similarly failed invasion of Russia during the Napoleonic wars. To be fair though, hindsight is 20-20 and not to mention Hitler became drunk with power, also he was an asshole.