Don't forget brave cannon fodder. Only way to win a land war with China and help the Chinese Nationalist win their civil war that started back in the 1930's!
You're being snarky (I think) but that's actually worryingly accurate.
Before WW2, there was a general understanding that war was a good way to deal with excess or unwanted population - especially from the lower economic class - as well as the mounting social malaise caused by inequality, poverty, and internal sectarianism. After total war and atomic bombs scared us straight, the last 80 years or so of unprecedented peacetime are something of an experiment to see if we can come up with alternative ways of dealing with these problems.
Finding something meaningful for people to do with their lives (especially younger men) is a genuine challenge. College used to be an easy early option for large numbers of them, while (I think) also smoothing some of the edges off and preparing both men and women for adulthood, but that option has become less alluring due to the increasingly obscene money required and distrust in higher education as a reliable means to a reliable future. Something else will need to take its place.
Personally I think it's tragic that the US didn't see this coming almost 20 years ago after the 2008 meltdown and start programs for creating new non-profit community vocational schools across the country. The rewards of government investments in such publicly-supported schools would vastly outstrip the costs -- the country will *always* need mechanics, electricians, plumbers, carpenters, etc, and these should be reliable, financially stable jobs -- supporting new adults as well as being a potential social safety net for older people who find themselves out of work and without other options.