> Well, can you think of any reason why those young women didn't want to consider and understand the "opposing view"?

consider and understand =/= agree and support. Regardless of the Harris' or Dems' views, you win elections by getting votes. If we assume everyone who voted for Trump is a sexist asshole, then Harris was running for president in a country where half the electorate are sexist assholes. If you're not gonna extend empathy and try to build bridges with them, then there's no point in running.