Gerald Ford and Jimmy Carter, were probably the only two presidents going back to Eisenhower who were actually pretty decent human beings
I'm reading "The Invisible Bridge" right now, and Ford does come across as relatively decent - hopelessly out of his depth, but also a victim of unfortunate circumstances.
Every president and vice president after Carter have been more or less sociopaths
I didn't think Bush Sr. was a sociopath - his foreign policy was a stunning triumph compared to everyone who followed, and he managed not to do anything else drastically stupid, which is really the most I expect out of our leaders at this point. I don't think it's irrelevant to his legacy that the Clinton years coasted by relatively smoothly with a strong economy and uncontested superpower status. His one unforgivable sin was appointing Thomas to SCOTUS.
I don't really think Obama or Biden are sociopaths either; like most politicians, they're career opportunists, but occasionally one of them does something that suggests there's an actual human being underneath, and I'm reminded of what a disappointment the last six years have been. But even Bush Jr had his occasional moments of decency and thoughtfulness, which made everything else about his presidency even more infuriating.