For one thing, I’m saying that the worst possible strategy Bernie could make is trying to peel off support from Trump because then the entire political conversation is an appeal to white guys, which would most definitely alienate women and people of color.
Secondly, Hillary supporters are mostly female, as the graphic below indicates. Seeing as Bernie’s primary campaign was perceived as sexist, Bernie would have an uphill climb earning women’s votes. Trump’s blatant misogyny might not be enough to convince women to vote for Sanders. After all, when faced with a choice between two sexist candidates, many women might just stay home or write-in Hillary Clinton.