Eh, there's nothing wrong with sarcasm, but if someone's making a good-faith argument that a work is racist (even if, as in this case, the argument doesn't have much merit), I think that's worth treating seriously.
By the time when there's at least fifty idiots screaming racist at their shadows for every actual racist out there, it just becomes tiresome..
But hey why don't we do "positive discrimination", the way our politicians like it and give them preferential treatment compared to others and say everyone who screams racist is always right, can't go wrong at all.. Won't cause anyone to get annoyed at it either..
Politicians.. in my country they don't even show up for parliament, get paid several times more than others and are given bonuses for epic failures.. Some of them even publicly admit that they can't do mathematics while they're ministers of bloody Finance.. *sigh* Let's just call them racist shall we? that's popular these days and seems to work quite well -_-
PS: I will balk at the first one who says anything about negative energy.