And as was said, this is bigger than Bowe Bergdahl. Until we actually debrief him we don't really know what was going through his head when he decided to walk off post. My guess is he was a disillusioned, naive and sheltered young man who thought he was somehow going to go pull a Rory Stewart (The Places In Between) and be amongst the people and do something something.
At the end of the day he deserves due process, that can't happen if he's stuck with the Taliban. Those that died searching for him and those that put themselves at risk to bring him home were supporting the American sense of justice. That is worth supporting regardless of Bergdahl's actions.
At the end of the day, bad shit happens in war, sometimes due to stupidity, sometimes shitty situations, sometimes crappy training and sometimes crappy leadership but everyone one of us knows that we'll bring you home no matter what, at least you'll be answering for your actions from American soil or buried in it. As a PR guy, I'm willing to risk my life to honor that contract.