Supreme Court Justice Potter Stewart famously said "I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description [hard-core pornography]; and perhaps I could never succeed in intelligibly doing so. But I know it when I see it,"

Likewise, it's difficult to exactly define the line between "poor taste" and overt racism.  We each may draw that line somewhat differently, but most us do, in fact draw it.  Mr. Stenersen and some commenters on this site dismiss criticism of statements as "racist" with a trivializing reference to "thin-skin" and "politically correct."  

Indeed, the First Amendment protects individuals' right to express such overt racism.  It also protects others right to confront such comments and condemn them as such.  So go ahead, make those racists comments, but don't get your "feelings hurt" when someone confronts you about them......and, please, don't try to trivialize such confronting as PC......