Close read of a poem

Now poetry is one of the things I find the hardest to review, so here we go. Commings:

The whole poem is in one line with no breaks, meaning no breaths. It seems as if it is being said by some drunk and rambling about something to his empty glass. He speaks of America in almost a sarcastic way but seems patriotic about it. He talks of the heroic happy dead being rushed to the slaughter. He may be talking about solders being rushed away to war. In the end he asks should the voice of Liberty be mute because of this? I think he's talking about how the people don't have a true say in what goes on in this case.