I'd vote for her in the primary, to get Trump reelected.
And then you'd feel how the ironic Trump supporters felt if she actually ended up beating him, lol.
Trump needs to get re-elected on his own merits.
America is potentially stupid enough to elect Maxine Waters if the right set of circumstances occur. It's not likely, but it's now possible.
As for her legitimate adversarial feelings: Ms. Waters has contempt for white folks, and does little to hide this. I consider her someone who would decide all issues between "black" interests and "white" interests (whatever they are) not on the merits, but on her desire to even up history; to do as evil men did to black folks in the Jim Crow South. If this is how folks want to right past wrongs, then, by all means, let's have at it at the ballot box. Somehow, I doubt that will provide any healing or promote working understanding between people, but I don't think Maxine Waters cares about that one iota.