If black people are simply the necessary underclass, what negatively affects us isn't viewed as negatively affecting the country. In fact, what negatively affects us is often seen as exactly what's necessary to HELP the country (slavery being a prime example... controlling our population by any means, including murder, being another).

Depending on how you view it, being "good" for a country founded upon murder and deceitfulness can easily involve enslavement and more killing. Just like a virus, healthiness is bad for it. Is America a body with a virus? Or is it the virus itself?

That said, the answer to the "worse president" question would have to be Trump, because he'll run the whole country in the ground rather than just mistreating black folks as a means of keeping it afloat. As a black person tho, my answer to the "worse person" question is fuck all of 'em.