Righteous Wars and other myths.
WWII is considered a righteous war by most Americans, yet it had the draft.
What I have noticed about the right wing patriots is there are quite a few have a wide variety of justifications for not serving but demand those who attack us be punished with military force. The former vice president comes to mind, but seems quite a few very well off conservative Americans have very well rehearsed excuses for not serving. Funny how many love shooting sports, talk a mean game about patriotism, armed citizens to keep tyranny at bay, but are not about to go anywhere near 'harm's way' when real threats are around.
I volunteered for the Infantry, just figured it was what a citizen who can serve should do. I personally don't see much worth dying for overseas, but who really does? If it is up to each citizen to decide I'd wager a shiny nickle most would opt out. So I figure it as not for me to reason why, we are supposed to have civilian leadership that truly does value American life over corporate gain. Over petty vendettas and childish posturing. Remember each soldier has put life, liberty, and the pursuit of happiness at risk to serve the national interest.
I have heard a lot of reasons why men didn't serve their country. The worst is 'righteous' war. War is never righteous to those who see combat, lose buddies, lose life. it is a vile and evil process you are a tiny part in the grand scheme of things.
I guess some would rather enjoy all the good our nation has to offer, but not render service to keep her strong. These days less than 10% of those in uniform are in combat arms- logistics and personnel support eat up vast numbers. Plenty of places for the not so willing to risk life and limb, to serve the nation that has so blessed so many of us.