Extremist positions on trans issues. To quote Sam Harris: "Congratulations, Democrats. You have found the most annoying thing in the fucking galaxy and hung it around your necks."[1]
Harris said almost nothing about trans issues during the election. You're attempting to rewrite history if you're claiming it was somehow a core tenant of her campaign. That was entirely propaganda by the opposing party.
Are voters only supposed to limit their votes about things candidates say during the election? If so does that mean voting against Trump for Jan 6 insurrection was wrong? Or can voters vote against Harris because of policies she has endorsed before the election?
It is reasonable for voters to consider politicians' behavior before the most recent election cycle and ridiculous to say voters should have ignored Harris' earlier statements. (And I say that as someone who voted for Harris.)