Why do Democrats demonize their wealthy donors?

Maybe at the Republican National Convention in Milwaukee the Republicans insulted their rich donors, but I don't remember that (referring to Michelle Obama's slam at the wealthy during her speech). I know the Democrats listen to their rich donors, because that's what began the march of daggers in the back for Biden. In mid-July George Clooney, a film star, called on Biden to get out, to retire, to fade away, to fall on his sword to save the party in power.  And he wasn't alone. All those Hollywood stars and corporate magnates with deep pockets and PACs were afraid Trump would rain on their power parade. During the 2016 campaign when another woman was campaigning for the White House, "At least 85 of 154 people from private interests who met or had phone conversations scheduled with Clinton while she led the State Department donated to her family charity or pledged commitments to its international programs, according to a review of State Department calendars released SO FAR to The Associated Press. Combined, the 85 donors contributed as much as $156 million. At least 40 donated more than $100,000 each, and 20 gave more than $1 million. (Fox, 8-23-16) In their 40 years of political life (as of 2015) the Clintons raised $3 Billion for their campaigns and their foundation. (WaPo, 11-19-15)  And they did it office sucking up as much money as they could.