Sorry OP, gonna discuss politics again...
Yeah, this is gonna be loooong...
In the 1930's authoritarianism was spreading globally (just like today) while Germany and Italy were invading more vulnerable countries with overwhelming force and little consequence from Western Democracies.
It is interesting how you hide behind pretty but empty words like "Democracies versus Authoritarianism" as if there is any difference between Nazi Germany, Russia and United States.
A bomb dropped from a Nazi aircraft on a city kills people the same as a bomb dropped from a Russian or American aircraft. By comparison Nazis during WW2 and Russians in the past decade or two have murdered less people compared to the US axis known as NATO
after WW2 and
during it!
P.S. "invading more vulnerable countries with overwhelming force" that sounds familiar. Oh I know some vulnerable countries invaded with overwhelming force of an Axis: Iraq, Syria, Afghanistan, Libya and of course today Gaza!
In 1940 when the US started shipping weapons to England and it became a real possibility that American troops would be sent to Europe, Germany somewhat successfully (although not ultimately) worked to influence American opinion by spreading misinformation and polarizing the country just like Russia did leading up to the 2016 election. There were literally members of congress traveling the country giving speeches that were secretly written by Nazis, sending pro-Nazi propaganda through the USPS, pushing the idea that to be a true patriot meant putting America first, and putting America first meant not stopping Germany or Italy from conquering Europe.
No my friend. WW2 like the current WW5 is fought between similar regimes to gain more power. US didn't get involved in it until the end not because some idiots were affecting public opinion but because the regime wanted to go in as the victor, lose the least and see mainly Europe and of course Soviets destroyed.
If US had entered the war at the very beginning and performed a miracle and ended it then and there, Soviets wouldn't have lost this much and would not have gotten weaker. They would have remained a serious challenge and would have never allowed US to even dream of becoming a hegemon.
Most importantly the Europeans would have remained a serious competition for US instead of being destroyed and weak becoming heavily dependent on US to rebuild their flattened cities.
So since nobody could reach US mainland back in the 40's, instead of getting involved right away the US regime waited it out. Everyone that were a challenge to the regime's much desired hegemony fought each other and destroyed themselves for years; then US entered near the end and became the only victor of the WW2 building its hegemony.
This is exactly why the US regime committed genocide in Japan bombing dozens of cities using napalm and of course the thing everyone usually remembers is the two nukes after Japanese were defeated and were talking about surrendering.
...
Things are starting to sound familiar, aren't they?
5 years ago could you even imagine Europe and deindustrialization in the same sentence?
How much Russia has lost? Economically and militarily?
China is another "competitor". How are things over there in East Asia?
...
Yes. Welcome to WW5.