I know that you know the obvious answer. Without a permanent class dependent on the govt (in the form of the DIMocrat party) they lose their power.
So of course they want high unemployment for all the people they so happily put into their little identity boxes. If those people had a job and were self-reliant, instead of Dem-reliant, they'd lose their power.
It's the same reason they're for open borders, and we can't even call an illegal immigrant illegal, without being called a racist. THEY WANT THE VOTES!
It's a pretty safe assumption that if low unemployment and secure borders would get them votes, they'd change their positions in a heartbeat.