As a, er, planet, we've actually done fairly well at easing those over the last century, tho. Sure, they're not gone, and maybe they'll never be gone, but improvements can be made, and it's probably not helpful to treat them, or racism, as laws of nature.
I do think there's a perception problem, though. Basically no-one would claim that disease or poverty aren't problems anymore, but there are a surprisingly large number of (mostly white, obviously) people who claim racism isn't a problem anymore.