It's unfortunate, if not surprising, that the Biden comments are what seem to be getting the most attention in these interviews of late. I do think her attempts at courting Republican votes are somewhat clumsy and may not help her in the end, but the far left has made it clear they won't support her, leaving her with fewer options. Part of the reason for all the chatter is because they were looking for another reason to justify not voting for her (instead voting for Stein, or Trump, as many of them are fond of Trump), and this is an easy one.
There are just a lot of people out there on all sides who will never vote for Harris, some due to racism, some due to sexism, and some because they dearly miss the way the Trump POTUS years made them feel. I saw someone going on about how her answers are just like Hillary 2016, but Hillary tried to run a much more progressive campaign, especially after the Bernie primary scares. It just didn't matter to them what she said or did, and they would, as they still are, come up with any reason to justify their vote.
I'm not sure any Democrat could win the current election, but the bigotry at the core of this country makes me more and more uneasy as the day gets closer. I hope Harris can somehow pull it off.