Your post prompted me to look up the song. I just saw this online re the song:
“The working title of this song was ‘Vietnam’....this song is ‘about a working-class man in the midst of a spiritual crisis, in which man is left lost… It’s like he has nothing left to tie him into society anymore. He’s isolated from the government. Isolated from his family…to the point where nothing makes sense.’”
Right; based on the anti-war idea that all war is wrong; he’s forced into war - by the evil US government.