I’m afraid it’s worse than that.

Basically after FDR died, for as imperfect as he was… all the objective good he did was slowly whittled away by members of both parties - simply at differing rates.

With Truman put in as his VP after the DNC suggested replacing FDR’s first VP - Henry “I want to pass a civil rights bill in the 1940s” Wallace for their more “centrist” candidate, we dropped 2 atomic weapons on civilian cities.

Kennedy was the first real neoliberal in that he came from a dynastically wealthy family and successfully dropped the top marginal tax rate that FDR had helped set at 90% down to 60%… which helped create massive budget shortages about a decade later. LBJ got us into Vietnam. Carter was too nice to ever use the bully pulpit and also let his own personal Protestant work ethic dictate his own policy goals which he seemed to back with the idea that things like the oil crisis should be a burden that every day Americans shoulder rather than the massive giant multinational oil companies, and then after Reagan won 2x and Bush “my family worked with the Nazis” Sr. won a term afterward, Clinton pivoted the last remaining New Deal democrats to a 3rd way where they abandoned the working class for a more palatable version of Republicanism.

Bernie really could have been a turning point, but instead all that has happened is the accelerating worsening of all our lives alternating between the hands of the ultra rich who only do it slowly… and the hands of increasingly fascistic nakedly monstrous ultra rich ghouls and their goons.