You know what Bernie Sanders would be? The first Jewish President. And alongside that (though it goes without saying) the first non-Christian President.
In a country dominated by Christians, run on their values, and where ‘because the bible says so’ is considered a valid political argument, that’s just as important (if not moreso) as a female president. And while its not ever been as prevalent as racism or mysoginy, antisemitism has played a role in American history (and Western history in general), so this would also be a way to push away from that.
Just thought I’d point this out, since no one seems to be talking about it.