Among other things: Joe Biden was responsible for allowing the attacks on Anita Hill that allowed Clarence Thomas to get confirmed.
and pushing the extreme legislation in '05 at the behest of lenders that student loans could not be discharged in bankruptcy. That's contributed to skewing college tuition and the awful debt burden many bear. I've read that the idea graduates were declaring bankruptcy to escape student loan debt was largely a myth pushed to get this legislation through. thanks joe!
He's also been more or less anti-worker, anti-middle class, pro Wall Street and pro-Invading Middle Eastern countries during his entire tenure. he's not progressive in any sense, but he plays one on TV.
Nevertheless, I'm sure the 50% of the population that gets their news from Fox, Breitbart, etc. considers Biden a dangerous socialist, communist, terrorist-comforter.