Biden is correct about the numbers. More than 1/3 of the American electorate consists of white people with no college degree.
There is a very good reason why Donald Trump famously said:
They voted 67-32 in favor of Trump in 2020.
That means that a Democrat must either (a) cut into that group or (b) win 60% of the remaining votes. Neither is easy to accomplish. Biden won with (b) in 2020, but has chosen to focus on (a).
No problem. All he needs is a time machine back to 1960, when the unions could bring in lots of blue-collar white voters for the Democrats. At the moment Biden has devised no strategy to counter the culture-war stuff with blue-collar voters. He thinks money is the answer, but those voters are not responding.
The weirdest thing about the current state of American elections is that candidates who would appeal to both sides (except their fringes) can’t win the primaries. Chris Sununu would probably defeat Biden in a landslide, but he ain’t makin’ it through the wackjobbery in those GOP primaries.
Oh, cripe, I just dread a Biden-Trump rematch.