I think that there’s not just one reason we can list as why she lost. It’s complicated. The young white male demographic specifically, voted primarily Republican - which makes sense given that they’re being marketed to by republicans (think people like Joe Rogan, Andrew Tate, people like that). I almost didn’t vote for her over Gaza - and I’m sure a lot of people didn’t vote over Gaza. In regards to “All Lives Matter”, I don’t think so. I never got the impression that that “movement” was really about saying “Not just black people matter!”, it was about being an opposing statement to the BLM movement. The words “Black Lives Matter” do not say that other people don’t matter - and the movement is about police violence against black people. “All Lives Matter” was made to deny the recognition that this racial violence happens. I’ve seen it used a lot to defend police (and let’s be honest it has ties to the whole “Blue Lives Matter” thing).