The reasoning there is due to the fact that, in the US at least, race is often tied to identity, in terms of background, culture, and even experience in daily life.
Ultimately, as I eluded to, we should all try to be better people first and foremost. I'm not saying that calling out and standing up to injustice is not important. But we each have the potential to control our own actions much more so than to control anyone else's.