I've discussed possible histories from the standpoint of the Civil War either not being fought or having turned out differently, and I argue that with a separate North and South, it would have been less likely for the US to have interfered in World War I.
I then point out that a whole host of horrible things that happened as a result of world war I, would not have happened.
Indeed, it is hard to imagine how history could have turned out worse than it actually did in our timeline.
No Nazis, No Nukes, No Communist control of Russia, therefore no Communist control of China. 100 million people would not have been killed.
Yes, the path our history actually took seems to be about the worst path it could have taken.
Mostly true, with the caveat being a Germanic Europe clearly would have been first to nuke up. And first to satellite launch. Perhaps a scary thought. Lol.
Why would America not intervening in the First World War mean no Communism in Russia (or China)?
And why would it mean no nuclear weapons?