I doubt anyone would take offense for purple people with slanted eyes.
On the other hand in terms of racism as a word it may not be if there was a birth place for all those purple people and it wasn't just one exception, a weird looking lazy guy.
If someone keeps sending racial slurs on and on and on, constantly, about these slanted-eyed "purple"-skinned people, in a blatant display of how he's basically saying that purple asians are a miserable pile of insect dung undeserving of equal status to other races, you wouldn't take offense?
To me, the insistence of distasteful RPs (be them about rape, racism, or other stuff) is more important than their nature (like whether the other guy's purple instead of yellow).
