It's not about "being obsessed with the past" it's about paying attention to history, particularly a certain person's history. Joe biden had not been even remotely interested in legalization/decriminalization until he started running for office. Joe Biden was already an old man when he pushed for enforcement of the RAVE act along with other drug bills, I can maybe understand his "concrete jungle" statements from the 70's, but we are literally talking about barely over 20 years ago.
All I am saying is to be cautious and not too trusting, ESPECIALLY of politicians.