Just speculation at this point but.....

[Mr.Obvious]

Brian, I don't have anything against Oprah. But being smart, not having money handed to you and being backed by the Obama's are not reasons to vote for someone, to me.
It's not about any of that. If Neil deGrasse Tyson were to run for president, I would have my reservations as well.
He's really smart. He's not a spoiled brat. He might get support from the Obama's.
But would he be a good president for your country? I don't see why he would be.

Quick addition (edit): Don't get me wrong, being smart is important. But there are a shitload of smart people out there. And a shitload who are smart in different ways. And while I hope the US president will be smart, it is not enough to be smart to vote for someone.

Ugggg.....

It seems that even liberals want it the same way as conservatives.

We all want somebody new, and with experience at the same time.

If we don't want career politicians that would require new blood. And Obama ONLY had 3 years before he ran. McConnell sucked the dick of Andrew Jackson.

It amounts to picking your battles.

Well, I'm not exactly a liberal... but that aside.
Maybe I'm looking at things more from the POV from my upbringing and my country as opposed to America.
But even you agreed she wouldn't be your first pick. If your goal is going to be 'Defeating Trump' rather than 'trying to elect the person you find most qualified', that's of course your call. I just think you're losing something important in the process.