Lind's set-up should be obvious to anyone not wearing blinders by now, but some people need to have it beaten into their heads,so I am quoting it:

[....] In spite of the penchant for self-inflicted wounds shared by Republican leaders, Joe Biden only narrowly defeated Trump—in the process losing an unprecedented share of the former Black, Hispanic, and Asian American Democratic vote. The only group in which the party gained voters was among educated, affluent white men—a demographic in decline. As a result, instead of adding to the majority they gained in the 2018 midterms, the Democrats actually lost 13 seats in the House. Only flukish elections in Georgia enabled the Democrats to gain 50% of the Senate, where only the tie-breaking vote of Vice President Kamala Harris gives your party the barest of bare majorities. It is widely expected that the Republicans will recapture the House and perhaps the Senate in the midterm elections of 2022.

None of this is news to you, Democrats. Unfortunately, instead of asking yourselves what is wrong with your party, you tend to waste your time explaining what is wrong with America.

There are two such theories that explain Democrats’ unexpectedly poor performances, deflecting blame away from the party leadership. 

One theory holds that the Electoral College and the Senate are biased against Democrats. The other holds that anyone who votes for Republicans is a racist and that the Democratic Party is a martyr to resurgent white nationalism in the United States.

Come on, Democrats. These are pathetic excuses [....]

Note: This is the first of a two-part series. Next up: How Republicans Can Become the National Majority Party.

Nate Silver just happened to be discussing a related point a week ago:

"How Biden Could Bring Back Trump":

These tweets combined with this one by AOC I posted on the thread on the infrastructure bill, made me think of how, to me, AOC is one of the few lefties that usually utilizes a friendly bridge-building and ameliorating approach (despite her mistake appearance at The Met Gala)

Too many, including the rest of "The Squad", are shrill and angry "my way or the highway", and may appear not much different than like, Alex Jones on the other side, turning off the middle mass of voters. It is less The Woke ideology itself than the frightening manner of Red Guards of Mao's Cultural Revolution. This even goes for Bernie when he is on the campaign trail, too often he does an "angry old man, hey you kids get off my lawn" thing. While in the Senate he switches to Mr. "let's make a deal" and the small reasonable GOP group that belongs to the Bipartisan caucus no doubt  remembers he is still in the Senate as an Independent.

Sunny optimism still sells, everyone still needs to be reminded of the lesson of tje messaging of St. Ronnie. He stole a lot of Democratic votes doing that and the party is still fighting to get those back.

My guess is they're selling it because the "tough on crime and immigration" message sells:

Yglesias:

Andrew Yang:

A reminder that even though he didn't do so well in the race for NY mayor, he had enough passionate national support to qualify to be on the stage for the main Democratic primary debates for president! His supporters are not chopped liver, they are a significant block of voters, a very significant one.

On "Progressives' mobilization delusion"

much more at interaction between https://twitter.com/mattyglesias and https://twitter.com/Nate_Cohn

Good question.