Random thoughts on passengers being key hauled off the plane.
Once you're boarded and seated the airline should not be able to key haul you out of your seat and off the plane. Bumping people should be done at the gate before you've boarded.
Dr. Dao's past should not be an issue.
United has (PR wise) and will pay a lot more than a few thousand dollars it could've paid initially to not be where they find themselves today.
Remembering when flying was a pleasure.