This is unironically good for Kamala’s chances. The average person in the US is racist, but not racist enough to not to feel second hand embarrassment from such overt comments, which may, ironically, make them a little bit less racist and make them think twice before voting Republican in 2024.
Biden managed to get a bunch of unions to endorse him for the elections, both due to negotiations and his policy. Given that Kamala was in his team, the only thing she needs is the will to declare that she will continue along Biden’s lines.