Why do you expect us to do that? Is it because they're black? Are you trying to bait in racism or something like that?

Shame on you.

I don't complain of them because they look black. I complain of them because their skin color is completely out of sync with the rest of their appearance, making them look like a mish-mash of races and consequentially just bloody stupid.

See? This is how you humanize these characters. The problem has never been race, it's been people changing the too much. Regardless of whether I think Papyrus/Sans are black or not dosen't matter here because they still look like Papyrus and Sans.