It used to be you could support a family on a single income
...in the 1960s and early 1970s. Thanks to the oil crisis, inflation in the late 1970s (spurred on by the Republican-dominated congress) and then the recession throughout the Reagan years (and the skyrocketing corruption and lobbying) by the mid eighties, a family required two working adults, and young adults couldn't get jobs in their field. By the 1990s, young adults were having to stay at home with parents until they were established.
In the aughts, adults were moving back in with parents or consolidating households.
Joe Biden is an establishment Democrat, about as right-wing as Democrats go. (The Democratic party is really right-wing compared to most systems outside the US). After Carter, who I think really intended to serve the public, the Democratic party revised its internal electoral policies to keep future public-serving candidates from winning primaries. (They changed them more after Occasio-Cortez won her primary.)
Nowadays, all you can really vote for is for or against the GOP, which is looking to neuter elections and turn the US into a one-party state. The DNC is going to preserve the status quo and fend of civil war as long as it can, but is not willing to engage in policy that will pull 80% of the US out of precarity. That will get us out of our current spiral. But they're not willing to go there, and they'll have to get past the US Supreme Court which is determined to preserve the corporate oligarchy.
To be fair, compared to systems outside of the us, all of it is "right wing". To me, the us is just capitalism to the extreme which, just like socialism's extreme ( communism ) is fucking terrible.