There is no doubt that sexism hurt Hillary Clinton's campaign and that without such a sexist culture she could have beaten Barack Obama for the nomination. But that argument is only valid in a vacuum, since Obama had to overcome racial and religious bigotry in his own quest for the nomination.
But Obama did not play the gender card against Hillary, while the Clinton campaign regularly spoke of Obama's issues with white, hard-working voters.
Just saying, I hope that Clinton supporters -- and I was one -- who are angry at sexism realize that the white woman and the black man each had their own bigots to overcome, and they both beat a field of white men.