Okay, here's how this works. During a draft, you either go or you find a way not to go. But whichever path you choose, you don't criticize the people who chose the other path. Terrible things happen in war. Moral lines and codes are smeared beyond recognition, and it deeply affects those who go. To brand all the vets of Vietnam as murderers and assassins is very disrespectful and way to generalized. Their number got drawn and they choose to go.
Leave them alone, they never did anything to you.
