The message was loud and clear: America writ large is not ready for anything less than a straight, white, male president. Its time to stop being delusional, Obama was a fluke, and not going to be repeated. You might not like hearing it, but its the reality on the ground, don't take it from me.
In retrospect, I think Biden could have shat himself on live TV while asleep at the podium and probably have still gotten elected, the bar was so, so low. Kamala basically ran a prefect campaign, its just not what America wants.