Harris has only tried to do the right thing if it was politically convenient. Remember in the debate when she called out the racist history of Biden? Magically she dropped all that when she became his VP. Similarly, she was willing to run with the genocide platform because she thought it would help her chances at the presidency. Yes, she's the better choice, but even the better choice is not good enough. Neither candidate was willing to do something about the genocide and I think that's something important to recognize.
It doesn't mean I think she wasn't the better candidate and it doesn't mean I think people shouldn't have voted for her, but when we've come to the point where genocide is being actively supported with Biden sending billions of dollars in weapons to the cause and Harris hitching her trailer to that dumpster fire (and this is supposed to be the "good" party) then the situation is just absolutely fucked.