He seems to be part of the legacy of the long-running lie that the left is pro-blue collar.
It actually did used to be a blue collar thing this happened during the last realinment during the FDR era, where the democrats created an alliance between various labor unions ect. This paradime lasted until the 1960s when you got the new left and the union members needs took a back seat to civil rights activists for the next 60 fucking years.
Now were in the mysts of a new political realiment.
Lets face facts George Dubya bush destroyed the republican party, and they didn't spend their time in the wilderness rebuilding their foundations at all leaving the party wide opened to be changed by who ever came along. That person was trump and he brougth the populists out of an 80 year long cold and they are in the process of taking over the republican party.
The old guys are currently being kicked out quite a few kicking and screaming but their fuck up was of such a scale that no one gives a shit.
Biden has responded to this by centralizing the establishment into the democratic party, which has set up neo optimates vrs the new Populist movement.
The democrats don't represent the poor any more, or the working class their the party of the rich and thats finally starting to sink in.