Trump and Sanders targeted the same class of people, economically speaking.
Would Sanders have won? Probably not, who knows. But I doubt a member of the 1% club could have courted and won the working class/ disenfranchised vote as he well as he did if he was running against a viable and proven social Democrat.
Clinton epitomises the clique that pushed for and benefitted most from globalisation and all that entails. That she blames others for her mistakes, and there’s a warts and all book on her campaign that is pretty damning of her by all accounts, is not surprising.