In terms of a plot engine, I see it as realistic and probably achievable but it would be walking on a very thin line. We have two relevant forum-wide rules of:

[b][list]
[*] [b]Racial/sexual/other epithets:[/b] If it's a letter-word, like the n-word, we will ban that. We also have urban dictionary, so we can look up things of this nature. So don't use a derogatory term for another racial group. ex. 'N*gger' 'K*ke' 'Gr**ser.'
[*] [b]Advocacy of violence against a gender/sexuality/religion/ethnicity/etc.[/b] 
[/list][/b]

IF you feel that you can manage it while fitting those two, it'd probably be borderline okay, but it would be a fine line.

I'll pass it around some of the other mods and get a consensus on it though.