1) Meh! is pretty s#!tty campaign slogan.
2) I'm not saying who Trump "should" fear, I'm saying who he did fear: a New Yorker who was far wealthier and who knew him far better than anyone else, and had dedicated his fortune to taking him down.
3) Don't know if you're hinting at Bernie Sanders with the cult reference. I'm thinking of enthusiasm as it applied to Barack Obama and how it didn't apply to John Kerry, Al Gore and a large segment of Hillary voters.
4) I can't speak to everyone, but while I knew Biden as a shoot-from-the-hip guy prone to gaffes (which I didn't really mind), I did not expect him to have such a tepid debate performances, and his recent speeches aren't really gaffes, they're awkward word salads, some comparable to the gibberish we mock from Trump. I honestly hadn't seen that before. Likewise, he recently crafted some heroic stories for himself that are almost entirely fabricated, including an elaborate tale of visiting Afghanistan to honor a Naval officer, getting arrested trying to see Nelson Mandela in prison, and a professorship at Penn, despite never teaching a class. Brian Williams lost his job at NBC for less. But maybe Joe always was this guy. I'm not talking about anything the GOP slime machine is cranking out. I'm talking about legitimate reporting from the mainstream media concerning problems Joe brings upon himself.
I never tensed up watching Warren, Buttigieg, Sanders, or Klobuchar speak. I get nervous whenever I watch Joe Biden speak. Almost certain I'm not alone.