I’m okay with Wikipedia as the starting point.
70,000,000 to 85,000,000 dead from WW2
https://en.wikipedia.org/wiki/World_War_II_casualties#:~:text=An%20estimated%20total%20of%2070,war%2Drelated%20disease%20and%20famine.
So 150M is an exaggeration. Maybe.
Do YOU accept it was 70 to 85M that died due to ww2? The whole thing coulda been avoided if we had not appeased Hitler. Japan would never have directly attacked the US if Europe wasn’t fighting.
I do not agree with Wikipedia’s numbers, simply due to it literally saying “Citation Needed” for that very range (take a look at your source in the text) and my source gathered it from the countries involved and our own US archives and gives the reference to our archives and even gives the equipment it was gathered on and taken from.
I completely disagree with your belief that the US appeased Hitler.