I'm not convinced he's better than Kamala mostly because of the clear escalation of police violence against citizens. I rank violence right at the top of how I inform all my morals so that is a huge non starter for me. Though I admit we'll never really know what she would have done.
The one thing I do like is that I've heard multiple Democrats admit that his election is their fault and they need to change or it will only get worse. If Kamala had gotten elected it might have pushed the Republican party even more extreme, where now I see some Republicans pulling back a bit.
Of course all of that supposes that one theory I believe is untrue. I can't find the video now but the theory is that the goal of the democrat party is to lose. The party's old core platform is still wildly popular with the people of both parties today. Basic Kennedy protect the little working man from robber barons stuff. If they focused on that they would win every election and then be forced to implement those things. But the party leadership are robber barons so they don't really want those laws. So they drag up just enough divisive bullshit to keep the elections 5050. This way they can blame the Republicans for every new law that screws the little guy. We tried so hard but we just didn't have the seats, sorry voters. This is why the party keeps railroading Bernie and putting up other candidates when polling shows Bernie would smoke Trump but Hillary and Kamala can't beat him. Bernie is old Democrat party basics but the other 2 make the election about gender instead of class.