The draft produced some of the finest soldiers this country ever had. Things got bad in 70 with druggies, In fact the damn pot smokers even started their crap in our SF camp around Spring 69.
I’m not saying that no draftees were good soldiers, but the draft doesn’t work when a sizable percentage of the population opposes the war in the first place. It ends up damaging the military and making an unpopular war more unpopular. And it’s not like people won’t volunteer. Look at how much the military has been downsized, with good soldiers being discharged whether they wanted to serve or not.