Couple of points: I like Cornel West. I used to listen to him regularly on the Tavis Smiley Show, and while I disagree with his religion, I generally approve of his politics.
The amount he owes is concerning, because it makes him vulnerable to undue influence, in the same way that Trump was. I don't really care that he owes back taxes, the child support is a problem IMO. People should take care of their kids, period. He's got the money to do it.
That said, I don't want him running as a Green; I want him running as a Democrat. Greens are largely fringe candidates, and the votes they win are votes that would likely otherwise go to Democratic candidates. Unfortunately, in our current system, that makes it probable that, unless there's a similarly popular Libertarian candidate taking votes from the Republican candidate, that the Republican is more likely to win. I am not a fan of Democrats; I find that they are unwilling to go nearly far enough on most things, and I strongly oppose their stance on 2A rights. But I oppose Republican far, far more. Given that I have a practical choice between Dems and Republicans at a national level, I'll vote Dem 95% of the time (I think I've voted Republican once or twice, but I honestly don't remember who, or under what circumstances). If Greens can demonstrate, through local and state level wins, that they have the power to win national elections, then I'll be happy to vote Green. And I do vote Green at a local level. But so far, they just aren't winning locally or at state levels in sufficient numbers to indicate that they have a snowball's chance in hell of winning a national election, much less a presidential election. West shoudl step aside once he's made a strong showing and convinced Biden to adopt some of his platform.