There are two separate issues. The deal was bad and dangerous no matter who it was. But acting like he is a hero (if he isn’t) is wrong to. But the U.S. SHOULD try to get deserters, and not just let them leave. But this was the WRONG WAY.
My understanding is the real point of this is to empty GITMO and the admin miscalculated on the cover Bergdahl would provide.
This is all about zero freeing the people he agrees with.
It’s what we get for electing an anti-American as POTUS. He no longer seeks or needs our approval so he’s doing what he wants - with “absolutely no apologies”.
Only Congress can change this.