The Answer is no, America could have stayed out of WW2, but with all their allies and japan bombing pearl harbor they had to join. Hope this helps! (plz give me brainiest it helps with my confidence)
Note: this is more of an opinion rather than an answer
Knowing Japan and the Nazis. No, not really. More so Japans fault. Had they not attacked Pearl Harbor. We would've probably went in later. Japan was leading a campaign of conquest. It was only a matter of time before the USA has to go in. Contrary to popular belief. Quite a few americans wanted to go to war. (I would have, have you heard of unit 731? Look it up)