For those od us old enough to have lived through his terms (or even remember when he was Governor of California) there’s an awful lot to blame him for.
But the other half of the coin is “Why didn’t Clinton, Obama, or Biden do anything about it?”
Reagan was in for 8 years. Obviously Bush (4), Bush (8) and Trump (4) weren’t going to do anything. Where were Clinton (8), Obama (8)? Where is Biden (3 and counting)?