As far as the elites are concerned, it goes beyond Hillary. They will continue to oppose Bernie not just out of revenge, but because Bernie represents an existential threat to their way of life — and indeed, to their very livelihood. The Democrat Party is run by consultants and sits upon a mountain of not just donors but vendors. Hillary spent $1.2 billion in total on her campaign. About 20% -30% of that money went to media agencies, consultants and other vendors. That is a huge amount of money.
Not only that, there was an army of political apparatchiks who stood to get very cushy and lucrative jobs in the new Clinton Administration, and they were denied. Their careers took a radical turn for the worse, and they will never, ever forgive Bernie for that.