Maybe I am biased because I really like Kamala and thought she ran a good campaign but I don't know that running a primary would have changed who the nom was. If you look at polling for 28 Kamala is like well ahead of anyone else, Gavin is usually second and I feel like Trump would have beaten him way worse. Unless you meant Democrat voters are obsessed with race and identity politics which I think we can be but also don't know that it's a bad thing. Point being considering the hole Biden was in by the time Kamala took over the fact that she managed to lose by like 1.5 nationally is about the best we could have hoped for. Doing a primary after the 22 midterms probably would have been the move.