For clarity, Harris gave up 312 EC votes against Trump. I cannot prove a counterfactual because Biden didn't actually FINISH his campaign, but by EVERY AVAILABLE metric, the White Irish Guy who won 81M votes on a platform significantly left of the platform both Biden and Harris ran on in 2024 in two separate campaigns, would have VASTLY UNDERPERFORMED Harris in 2024.
If it was sexism and racism that would NOT BE THE CASE. Newsflash; sexists and racists were ALREADY voting for Trump BOTH times