It has nothing to do with his age. His brain is on vacation. Bernie Sanders is older than Biden, but if he were the nominee we'd see the same enthusiasm as we're seeing for Harris.
That's how voters are. Democrats love to stomp their feet and say, "But voters should vote the way we tell them to, because we're right!"
Okay, maybe you are right, but if you want those votes, you have to give people what they want. And one of the things they want is a candidate who can speak.
Lots of people have a problem accepting that what’s “right” and “should happen” doesn’t mean jack shit. Just because your point is correct doesn’t mean others have to acknowledge or give a fuck
Politics is like a pendulum. The further it swings one way the further back the correction is after the results are realized.
I don't think the US can become a fascist nation. The business oligarchs have too much power and would quickly remove anyone who would be anything more than a puppet to control.
I mean, a core component in fascism is massive overlap between control of the government and the control of private interest, in return for politically backing fascists. Lobbying accompanied by mass privatization, basically. I think Mussolini is most infamous for this, but it also happened with Hitler. So, I dunno if that's really a limiting factor.