Um... since when do Americans claim that WW2 only started in 1941? Being American, I'm highly offended. *OUR PART* didn't start til 41, but we generally acknowledge that we were late players (thanks Germany!). And it covered the whole world starting in... oh... 1939... with this little thing called The British Empire.
Now, as for the OP's alleged lies:
Lie #1
Communism and Fascism are opposites. The truth is they are both totalitarian governments run by dictators who oppose individuality. In fact the Nazis were the National Socialist German Worker'S Party.
Nazis were capitalists, straight and simple. Ignore the 2nd word in their party name. Germany was still producing volkswagons after Barbarossa started. America was on a full war economy before Germany was.
Lie #2
Europe was better under Stalin than Hitler. The fact is Stalin was responsible for more deaths in Europe than Hitler was.
Sure, that's all technically true, but Stalin ruled much, much longer. The point being is *IF* Hitler had lasted, he would have been much worse than Stalin turned out to be.
Lie #3
Inflation is a natural process of the Economy. The truth is inflation can be avoided or at the very least minimized if the Government didn't continue to over mint money and if we actually had money that was backed by something.
If there was no inflation before the Great Depression (when we went off of the Gold Standard) or the Civil War (when we started printing money) then you MIGHT have a point... but facts slap your theory in the face. Inflation is *NOT* avoidable. Tis a fact of life. Unless you're a commie.
Lie #4
The civil war was fought primarily over slavery. The fact is, although slavery was on issue,the main one was state's rights vs. Federal power. If the main focus was slavery than states like Maryland, Kentucky, and Missouri would have joined the South, they had slaves and were Northern states, and additionally the Emancipation Proclamation didn't apply to them.
Um... yet another wrong. The civil war happened because the Southern states seceded. This happened because they were opposed to Lincoln's views. Which of Lincoln's views were they most opposed to? Slavery. They feared he would end it. They feared his other views more, but slavery was #1.