Ok putting on my History Cap, Yes at that time the popular idea was that Europes war is Europes problem, we were in the middle of economic growth the Industralist years, America was pretty happy and for the first time a generation of "working class" could spend time enjoying recreational activites, so why would you want to ruin all that by entering a war that was so far away, what did this have to do with us.
This is one reason why I think the JW's at that time thought that the world was going to end, due to global conflict and the war that was suppose to be the War to end all wars. I imagine that if CNN was around back then to cover the trench war fare the JW's would have pass around the Koolaide. Also I believe this year was also the outbreak of the Spanish Influenza, that and a World War, it must have looked like the end of the world.