The rich 100% would.
But it doesn't matter, because the narrative of that happening would translate to more votes than literally any advertising all the money in the world could buy.
Seriously, absolutely nothing could ever help a Dem become president more than all the wealthiest people in the country losing their shit over just the possiblity that a Dem becomes president.
An alien invasion wouldn't unite American voters as much as that would.
The reason Dems keep losing, is we've lost the "anti-establishment vote".
The party turning their back on them would be all people would talk about, it would fill the news cycle the entire campaign.
And even though media would present it as a terrible idea...
That's how they presented trump to, look at how that worked out.