There are many empty heads out there who would vote for her.
They are the same types obsessed with celebrities.
That is true, and in a lot of ways, Oprah is the democrat Trump. But the democrats have let the cat out of the bag that they will use the same splitter strategy that the republicans used in 2016, putting up 15-20 candidates, and manipulating the results to give their favored candidate the nomination, which will not be Oprah.
I don't think Oprah has the strategic skills necessary like Trump did to win in that situation, so all she can really do is waste money.