No, Bergdahl was not captured by the enemy. He WAS the enemy and defected to them. That is just TREASON, and anyway you look at it a violation of the UCMJ punishable by DEATH.
McCain was actively fighting the enemy as he was ordered and was blown out of the sky, getting seriously f’d up near to death and still suffering the pain after almost 50 years. The WAY he got captured was nothing like holding his hands up and waving a white rag on his rifle. He was a casualty before he touched the ground.
So there’s a huge difference.
So were a lot of other people who haven't spent the rest of their lives undermining the country they were serving.
McCain is a disgrace. There is no getting around that.
Every day he finds a way of disgracing himself a little more.