I can't contribute much to this but practically every pundit out there opposing Trump believes that Chuck Shumer is a mill stone to the Democratic party.
Except Schumer spent 18 years in the House, knocked off a three-term incumbent to win a Senate seat, and has risen through the ranks to become the Senate Majority Leader - so, uh, he knows a little something about politics and winning it seems to me. That's not to say he's infallible, but it also means he knows both how to get around in DC AND stay in office. Generally speaking, the people that rise to lead their party - Newt Gingrich is a notable exception - know how to play nice with the other side just enough, know how to push things through or realize a minefield when they're headed towards one.
It is very difficult for me to see the Democrats still focused on their traditional minority constituencies that have left them in large numbers rather than focusing on the very large group of independents that have been abandoned with the Republican move to the far right.
Except they take the same damned pill (almost) every single time.
The most predictable thing in American politics is the Democratic Party (as a whole) will get handed something easy on a platter, they'll weigh all of the identity politics involved, come up with the answer diametrically opposite to common sense, lose, and then blame the voters for being one of their chosen labels (racist/sexist/homophobic) when they lose.
It's fine if they want to run a primary candidate against Fetterman, it's their party. It's just that the opponent better not cut Fetterman into so many pieces WITHOUT WINNING THE PRIMARY that the Republican Party runs an empty suit and wins. If you do this, you MUST win, period (like with Sinema).
Only two things have saved the Democrats from a bigger problem lately: 1) the failed to nuke the filibuster (but petulantly threw Sinema overboard in their anger) - imagine Trump now with this power; 2) the GOP insists on nominating thoroughly unqualified kooks or whining about elections so that the Democrats have 4-5 seats in Georgia, PA, and Arizona that would be Republican now if not for the likes of Herschel, Kari Lake, and Dr Oz.
If the GOP wasn't so bad at this, they could have 57 or 58 Senate seats right now - and that's without even running any centrists.
And again - what's stupid about this country's politics is it still being this way after a decade of Dead Rat Hair.