You didn't answer the question. It's easy to send other people's kids to war (see Iraq, Afghanistan). It's a different problem when you have your own skin in the game.
>If so, take a guess what WW1 and WW2 would have looked like if everyone had that opinion.
WWI Would have been merely a local conflict between Austria and Serbia. WWII would have been about the same as it was historically, if it happened at all, see previous answer on WWI.
As an aside and ironically, both Wilson and FDR campaigned on not getting us into WWI and WWII.
>If so, take a guess what WW1 and WW2 would have looked like if everyone had that opinion.
WWI Would have been merely a local conflict between Austria and Serbia. WWII would have been about the same as it was historically, if it happened at all, see previous answer on WWI.
As an aside and ironically, both Wilson and FDR campaigned on not getting us into WWI and WWII.