I agree with you that this is existential for the Democrats. Nancy Pelosi has said as much indirectly in that they cannot survive another 4 years of Trump.
I said back in 2015, and even had said something similar earlier, that I thought the press had to be bribed in the vernacular sense in order to report the way they were reporting. An excellent example of that would be someone like Joe Scarborough. The guy was a fighter pilot and a Republican congressman during the Newt Gingrich years. Unless he has some sexual identity issues, I seriously doubt that he's going to have that kind of a political change with age.
Pelosi was talking about democracy, not Democrats. There is a Blue wave, the midterms were great for Dems, and the next election should be ok. Ignoring the presidential election, for a moment, there aren't as many Republican seats at risk as Dems, but the so called moderates like Susan Collins will be facing an uphill battle.
You really have no understanding of this. While I don't like Joe, I do watch because he always has a few superb guests, I watch for them. So let's talk about Joe. Like a lot of Republicans, the party left him before he left the party. Mike Lofgren, who worked in the Senate as a Republican for nearly a generation, put it succintly: They went crazy.
Now he supports the corporate wing of the Dem party. He still has an absurd misapprehension of economics, and a lot of other things. One foot remains in the version of Right wing politics he came of age in, and the other is in the world of the corporate wing of the Dems. When I was young, the corporate wing ran the Republican party, it was called the East Coast Establishment.
IOW, those Dems are Right center. When Joe was a kid, that was what Republicans were. His popularity rests largely on the way the show is structured. He is really very good at dissecting the politics of the day. Once his rant is over, the real experts take over (I really like Steele on days like today, he was the head of the RNC and knew exactly how to explain how the RNC wound up spending close to 100K to get Don Jr's book on the best seller list).
What is more interesting is the degree to which you are projecting. You are quite aware of the depth of corruption among Republicans. But you don't want to admit that, so you project it onto the other side. It's endearing, the way children try to understand the world of grownups, but so often get it terribly wrong.
Which is not to say Dems aren't corrupt, just not in the way you think they are.