Clinton was the nominee and she failed. Any harm the poor and vulnerable are going through right now is attributable to her failing to win the election.
In Sanders’ case, you cannot find a clip or quote of him “attacking her viciously,” as it does not exist. He fought on the issues and refused to attack her for things like her emails, while Clinton went whole hog trying to slander him in any way she could.
How’s David Brock these days?