Without class politics we will continue to have reactionary politics. Class politics offers the most accurate description of what has been impacting the majority of americans over the last forty years or so. Democrats continue to deny any class critique overall as a party. They only do social justice politics so as not to anger the hand that feeds them.
Sanders has at least changed the conversation from the vague promises of progress from Obama to one of class consciousness. For me, that's the underlying divide in the Democratic party. A politics of class vs. a politics of phoney meritocracy.
Obama was not three steps forward for many. His guy, Geitner, is running loan shark scams in poor communities now.