Old left: My brother died in the mine. His family received no compensation. My children are hungry. Workers of the world unite.
New left: The labor market needs to be permanently oversaturated with foreigners. My brother is a racist. I'm sterilizing myself to focus on my career.
— Book Cat (@OldBookClub) November 25, 2018
The old left used to be about the working class and the poor. That was the FDR coalition which persisted for decades.
Now the Democratic Party is about getting lower income minorities to vote for a party that primarily caters to upper class urban white liberals.