I don’t think that first line is completely accurate. You may be interested in a newly arriving book from Democratic pollsters John B Judis and Ruy Teixeira (they wrote “The Emerging Democratic Majority shortly before President Obama’s election in 2008). Their new analysis, “Where Have All the Democrats Gone?”, has been just released and has a different argument, especially in light of the NYT / Sienna poll that came out 2 weeks ago. Here are the reviews from The New York Times and Politico (which includes a 1 hour interview with the authors which is well worth your time.)US politics 101: most people will not switch and vote for the other guy/gal/party.
90% of political messaging is about turnout. If the Arab-Americans in Michigan stay home, bad news for Biden based on the 2020 numbers.
Opinion | The Democrats Are Their Own Worst Enemies
John B. Judis and Ruy Teixeira say the Democratic Party is failing in matters of culture and in matters of class.
www.nytimes.com
Why the era of the 'Emerging Democratic Majority' is collapsing
John Judis and Ruy Teixeira, co-authors of “The Emerging Democratic Majority,” are back with a new book that argues that the Democrats are imperiled by a “shadow party” that is forcing them into “radical” positions on cultural issues and diverting them away from their core economic issues.
www.politico.com