As they should have.With Vietnam, many objectors simply went to Canada, back when that country's government was not a pawn of the US government. I'm sure a few went to jail.
Shocking.The guys I knew didn't want to go to jail, but they didn't want to kill people either in a fraudulent war.
Seeing as that I answered your question, maybe you might feel the same about answering one for me...I suspect Bergdahl was having the same experiences. The war is illegitimate and most folks know that, even (maybe especially) those in country in uniform.
What do you find "illegitimate" about the war in Afghanistan? And if you could be specific.