A central theme of the arguments in this thread is that "Everything Biden says or has done is a lie or for personal gain, except what he has said that I think confirms my biases, which is the true Joe Biden." So it is actually pointless to try to highlight how Biden would be different because ultimately Biden has held virtually every position over his 50 years in politics.
Dukakis? You include him, and you can't just ignore Bush 2 or Clinton. Bush 1 was certainly an insider. Hell, even Obama had been in federal government by the time he got elected.
tbh I don't know if the DNC fixed anything this time around.