What was the most dangerous place to be

In a factory. Surprisingly, more people (at least in the US) were killed or seriously injured in industrial accidents than in combat. Way more. I suspect it wasn't much different in other nations. Industrial work back in the 40's was far more dangerous as there were few if any safety rules. Things like OSHA didn't exist. Safety glasses? Bah! Who needs them! Guards on machines? Hah! Not likely.

 

Over 300,000+ died in the factories?

 

The Department of Labor recorded over 7 million industrial injuries during WW 2 in the US. During 1942 and 43 37,600 people were killed in industrial accidents. This is about 7,500 more than military deaths to that point in the war. Fatalities in the US industries ran about 17,000 per year during the war.
Appproxmately another 250,000 persons were permanenty disabled as a result of indusrial accidents and another 4.5 million suffered temporary disabilities.

That far exceeds the roughly 450,000 US soldiers killed and wounded during WW 2.

Now that is just the US. Think about Germany where constant air attacks on large industrial complexes became the norm and the working conditions were far less comfortable. The accident rate there likely skyrocketted as tired workers kept awake all night by bombing, short of food and, working in poor conditions had to make some product.

 

I am going to agree with Senior Chief on this one. Unskilled, untrained, non industrial workers entering the work force in huge numbers. Add to that casualties which accrued during training and the United States had a pretty sizeable death toll.