I don't think a primary would have weakened Biden, but I also don't think a viable candidate could have challenged Biden. Sitting presidents don't face legitimate primary challengers.

The New Hampshire thing is a stupid DNC machination. They don't want New Hampshire to be first anymore, and New Hampshire still wants to be first. That's not Biden rigging the election, that's just oligarchs playing chicken with human rights.

I'd love to see a barnstorming Biden go fifty states with a message of hope and progress. Biden ain't that guy, and he wasn't that guy when he was 20.years younger, he either. But he is the incumbent, and no serious Democrat is going to risk the ire of the party by challenging the person who is ostensibly the party leader. They won't raise money, they won't have volunteers, and they won't get any pork or committee assignments. It's just bad politics.

I agree with you, I think an actual primary would be good. But I'm no longer naive enough to think it might happen.